One Waiting Room, Two Businesses
Almost every automation failure we have seen in dermatology starts with the same modelling error: treating the practice as one business. It is two. There is an insurance-billed medical practice running on a per-encounter claim rail, with modifier and bundling exposure on every line. And there is a cash retail aesthetics business running on packages, deposits and promotions, with no payer anywhere in the transaction. They share a waiting room, a phone number, a schedule and frequently a physician.
The same patient can consume both in a single visit. That is where the compliance failures live: the cosmetic portion must be separately consented, separately priced and never bundled into the covered claim. A scheduling agent that does not know which pathway a visit belongs to before the patient arrives is not saving the front desk time — it is moving a determination that used to happen at the desk into a system that has no authority to make it.
| Dimension | Medical (insurance-billed) | Cosmetic (self-pay) |
|---|---|---|
| Payment rail | Per-encounter claim to a payer, adjudicated with NCCI edits and modifiers | Cash at point of sale, packages, deposits, memberships |
| Booking trigger | Referral, recall interval, symptom, or an abnormal pathology result | Demand generation — paid marketing, promotions, seasonal cycles |
| Pre-visit work | Eligibility check, benefit verification, prior authorization for biologics and phototherapy | Deposit collection, consent, pricing disclosure, photography consent |
| Compliance exposure | Coding and bundling: NCCI edits, modifier misuse, one primary biopsy code per encounter | Consumer-protection and advertising law around claims and before/after imagery |
| Failure mode | A denied or downcoded claim, reworked weeks later | A refund, a chargeback, or a package liability nobody tracked |
| What an agent may decide | Nothing about coverage. It assembles, checks and flags | Nothing about candidacy. It books, collects and reminds |
The practical consequence for a build is that you do not have one intake workflow with a branch. You have two intake workflows with two rulebooks, two consent artefacts, two pricing disclosures and two definitions of a successful booking, and a triage step in front of them whose job is to route — not to decide coverage.
The second structural fact is volume. Dermatology runs a short-slot, high-throughput clinic — multiple exam rooms per physician, medical assistants rooming ahead — punctuated by long procedure blocks. High volume is what makes administrative automation attractive here. It is also what makes a small per-encounter error rate expensive, because you multiply it by a large denominator every single day.
One number worth keeping in view when you build the business case, with its limits attached: the Sinsky study in Annals of Internal Medicine reported that for every hour of direct clinical face time, physicians spent nearly two additional hours on EHR and desk work. That study observed 57 physicians across 430 hours in four specialties and four states, the authors noted the data came from self-selected, high-performing practices and may not be generalisable, and it was published in 2016. It is a real, citable finding about the shape of the problem. It is not a current dermatology benchmark, and we will not present it as one.
The Pathology Loop Is the Highest-Risk Workflow
Dermatology's defining loop is biopsy to pathology to result to patient notification to follow-up booking. It is not a clinical problem. It is a tracking problem, and that is exactly why it is the right first automation target and the wrong place to let an agent finish the job.
Consider the structure. A specimen physically leaves the building. Days later the result comes back on a different rail than the one it left on — a lab interface, a fax, a portal login, sometimes all three for different labs. Somebody has to notice it arrived, read it, decide what it means, tell the patient, and convert a malignant result into a scheduled excision or a Mohs case. Every one of those handoffs is a place a result can sit unread while everyone assumes someone else has it.
Here is the loop broken into stages, with what an agent may legitimately do at each one and what stays human. Read the last column as the design contract, not as a suggestion.
| Stage | What actually happens | What the agent does | What stays human |
|---|---|---|---|
| Specimen leaves the room | Accession number issued, container labelled, requisition generated | Register the specimen and start a clock keyed to the accession number | None — this is a clerical fact |
| Specimen in transit / at the lab | Courier manifest, lab receipt acknowledgement | Reconcile specimens sent against specimens acknowledged; flag anything unacknowledged past the practice's own SLA | None — flag only |
| Result returns | Lab interface message, fax, or lab portal | Match result to accession, detect the arrival, mark the register | None — matching is deterministic and auditable |
| Result is read | Clinician opens and interprets | Surface unread results ranked by age and by whether the report is malignant, atypical or benign | Clinician reads. The agent must not summarise a diagnosis as a directive |
| Patient is notified | Phone call, portal message or letter | Draft the notification against a practice-approved template and route it for release | A named human releases every clinical notification. No exceptions |
| Follow-up is booked | Excision, Mohs referral, repeat biopsy, or routine surveillance | Draft the booking request and hold it in a queue with the recommended interval attached | Staff commits the booking; a clinician sets the interval for anything malignant or atypical |
| Loop closed | Follow-up attended, or a documented non-response escalation | Track attendance, escalate non-response at defined intervals, and never silently close | Practice manager owns the escalation ladder and signs off closures |
The four numbers to produce before you buy anything
1. Specimens sent, last 12 months. From your own accession log, not from an estimate. This is the denominator for everything else.
2. Results returned and matched. The gap between this and the first number is your reconciliation problem, and it is usually not zero.
3. Results unread past 72 hours. Pick your own threshold, write it down before you measure, and do not move it afterwards.
4. Notifications outstanding. Results that were read but where no documented patient contact exists. This is the number that keeps risk managers awake, and most practices have never produced it.
Everything an agent can do on this loop runs on read access. Surfacing the backlog, ranking it by age and report category, reconciling sent against returned, detecting non-response to an outreach attempt — all of it computes over data your chart already holds. None of it requires a negotiated write path, which is why it is the cleanest first phase available to a dermatology practice on any certified EHR.
What it cannot do is commit. Creating the follow-up appointment, posting the result acknowledgement, and generating the patient letter into the chart are writes. An agent drafts; a human or a write-enabled integration commits. Hold that distinction and the rest of the architecture falls out of it.
Mohs, Block Time, and Why Naive Scheduling Breaks
Mohs micrographic surgery is where dermatology's scheduling problem stops being a volume problem and becomes a variance problem. It is a staged same-day procedure: the surgeon excises, processes and reads the tissue, and repeats until the margins are clear. The schedule therefore holds an open-ended block whose length is unknown at the time it is booked.
That unpredictability — not visit volume — is what breaks naive scheduling automation in this specialty. A self-scheduling or voice agent trained on fixed appointment durations will confidently place a Mohs case into a slot that cannot hold it, and the damage propagates down the rest of the day across two or three other patients who did nothing wrong.
The billing side carries its own constraints, and they are worth encoding as pre-submission checks rather than as automated corrections.
| Element | The constraint | The agent's role |
|---|---|---|
| Diagnostic biopsy before Mohs | May be reported separately with modifier 59, XS, XU or 58 per the 2026 NCCI Policy Manual | Agent flags the sequence for the coder; the coder decides the modifier |
| Mohs stages, CPT 17311–17315 | The Mohs codes include the skin biopsy and excision services (11102–11107, 11600–11646, 17260–17286) and the pathology services (88300–88309, 88329–88332). Reporting those alongside Mohs is inappropriate | Agent runs a pre-submission bundling check and blocks nothing — it surfaces the conflict |
| Repairs, grafts and flaps | Separately reportable with Mohs per the same NCCI paragraph | Agent assembles the documentation; the surgeon documents the repair |
| CLIA number on the claim | A MAC billing article states Mohs claims carry a CLIA certification number requirement and that the record must show the physician acted as both surgeon and pathologist. Re-verify by hand — the Medicare Coverage Database returns HTTP 403 to automated fetch | Agent checks the field is populated; the practice verifies the underlying rule |
| Block length | Unknown until margins clear. A staged same-day procedure, not a fixed slot | Agent models it as an open-ended block with a protected downstream buffer, and re-forecasts after each stage |
A single physician performs both the surgery and pathologic examination of the specimen(s). The Mohs micrographic surgery CPT codes include skin biopsy and excision services (CPT codes 11102-11107, 11600-11646, and 17260-17286) and pathology services (88300-88309, 88329-88332). Reporting these latter codes in addition to the Mohs micrographic surgery CPT codes is inappropriate.
— CMS National Correct Coding Initiative Policy Manual, revision date 1/1/2026, Chapter III
The general biopsy coding structure matters for the same reason. Since 2019 the biopsy codes have been 11102 and 11103 for tangential, 11104 and 11105 for punch, and 11106 and 11107 for incisional, replacing the deleted 11100 and 11101. Only one primary code is reported per encounter regardless of technique, and where techniques are mixed you report the single highest-value primary — incisional above punch above tangential — with add-ons for each additional lesion. We mark this one as consistent across professional restatements rather than quoted from a primary, because the AMA's CPT guidance itself is copyrighted; the code numbers and the 2019 replacement are confirmed in the NCCI manual text.
One caution on a rule you will see cited constantly. A Medicare Administrative Contractor billing article is widely reported to add a CLIA certification number requirement to Mohs claims, and to require the record to show the physician acted in two integrated and distinct capacities, surgeon and pathologist. We were unable to fetch that article: the Medicare Coverage Database returns HTTP 403 to automated requests, re-confirmed on August 12, 2026. Open it in a browser and read it yourself before you encode it as a claim-scrubbing rule. A writer who follows the link with a script will get a 403, and a vendor who quotes it to you may never have opened it either.
The Write-Path Constraint Nobody Tells You About
This is the single most important architectural fact in medical practice automation, and it is the one most consistently omitted from vendor pitches. Certified API access to your EHR is read-only. ONC/ASTP's own Certification Companion Guide for §170.315(g)(10), last updated May 15, 2026, says so in plain language.
The § 170.315(g)(10) certification criterion requires Health IT Modules to support API-enabled "read" services for single and multiple patients. … These services specifically exclude "write" capabilities, where authenticated and authorized third-party applications would be able to create or modify EHI through a secure API.
— ONC/ASTP Certification Companion Guide, §170.315(g)(10) Standardized API for Patient and Population Services
The consequence is not subtle. An agent can always decide and draft. It cannot always commit. Everything on the commit side of that line — booking the slot, posting the charge, filing the note, generating the letter into the chart, updating the problem list — happens through one of three mechanisms, and you need to know which one you are buying.
| Action | How it actually happens | Guaranteed by certification? |
|---|---|---|
| Read the chart — demographics, problems, medications, allergies, results, notes, coverage | Certified §170.315(g)(10) API | Guaranteed by certification in any certified EHR |
| Read across a population to build a recall list | Certified §170.315(g)(10) API — the criterion covers read services for single and multiple patients | Guaranteed by certification |
| Book, reschedule or cancel an appointment | Vendor-discretionary write API, RPA, or a human | Not guaranteed. Commercial terms, per-vendor app review |
| File a result-acknowledgement or a patient letter into the chart | Vendor-discretionary write API, RPA, or a human | Not guaranteed |
| Post a charge or drop a claim | Practice-management vendor interface or a human | Not guaranteed |
| Update the problem list or add a diagnosis | Vendor-discretionary write API | Not guaranteed, and clinically attributable — treat as a clinical write |
| Send a message to a patient from the practice's identity | Portal API or messaging vendor | Not guaranteed; also the highest-consequence write in the system |
The three mechanisms are: a vendor-discretionary write API, which is a commercial arrangement governed by the EHR vendor's app-review process and API terms and not by any certification right; robotic process automation, which is a robot typing into the EHR's user interface; or a human. There is no fourth option, and any specialty guide promising closed-loop automation without saying which of the three it means is selling something.
The exact question to ask your EHR representative
Send this in writing and keep the answer: "Which FHIR resources can a third-party application create or update in my instance? Is that through a certified API or a proprietary one? What does it cost? Does it require your approval per vendor? And if the answer is that there is no write API, is the proposed integration doing RPA under a named user's credentials?"
That last clause is the one that matters most for compliance. HIPAA's access-control standard already contemplates software as an access principal — 45 CFR §164.312(a)(1) frames access rights as attaching to persons or software programs — and §164.312(a)(2)(i) makes unique user identification a requiredimplementation specification, not an addressable one. An integration running under a staff member's login makes every agent action indistinguishable from that person's in the audit log. That is a compliance failure, not a design preference.
One forward-looking note, hedged because the source is hedged. ASTP/ONC published a deregulatory proposed rule in the Federal Register on December 29, 2025 — the "HTI-5" rule — which among other things proposes to remove the clinical decision support certification criterion and reserve §170.315(a)(9). Comments closed February 27, 2026 and we located no final rule. Note what it does not do: we found nothing in the sources we could verify that proposes to add a write capability to the certified API. Whether federal API requirements ever move beyond read is something we cannot tell you, and any vendor who tells you it is imminent should be asked for the document. The operating position for a practice buying in 2026 is unchanged: certified write access is not a right today.
The Human-in-the-Loop Boundary Table
Every dermatology agent build needs a written boundary document before the first sprint, and it needs to survive contact with a compliance officer. The organising principle is simpler than the vendor discourse suggests: federal law draws its sharpest line not between AI and not-AI, but between administrative data movement and clinical recommendation.
21 U.S.C. §360j(o)(1)(A) excludes from the device definition software intended for the administrative support of a health care facility, and it enumerates the ground broadly: processing and maintenance of financial records, claims or billing information, appointment schedules, business analytics, information about patient populations, admissions, practice and inventory management, determination of health benefit eligibility, population health management, and laboratory workflow. Scheduling, eligibility, claims data handling, referral logistics, recall lists and lab workflow are outside the device definition by statute — not by agency grace.
The moment software recommends to a clinician, §360j(o)(1)(E) applies and four criteria have to be cleared. And there is a further, harder limit that nothing in federal law relaxes: software cannot be the licensed professional. Medicare's incident-to rule defines auxiliary personnel as an individual who is not OIG-excluded and who meets state licensure requirements. Software is not an individual, cannot be excluded, and cannot hold a licence. There is no incident-to pathway for AI-performed work.
| Action | Who may take it | Why |
|---|---|---|
| Register a specimen and track its age against the accession log | Agent alone | Administrative data movement. 21 U.S.C. §360j(o)(1)(A) excludes administrative support of a health care facility from the device definition outright |
| Rank unread pathology results by age and report category | Agent alone | Prioritisation of a worklist is administrative. It surfaces work; it does not diagnose |
| Draft a benign-result notification from an approved template | Agent drafts, named human releases | It is a patient communication about clinical information. Under California AB 3030 a GenAI-generated clinical communication needs a disclaimer and human-contact instructions unless a licensed provider read it first |
| Notify a patient of a malignant or atypical result | Human only, start to finish | Safety-critical. The agent's role is to make sure it happens and to escalate if it does not |
| Decide whether today's service is medical or cosmetic | Human only | A coverage judgement tied to the Medicare cosmetic exclusion at Benefit Policy Manual Ch.16 §120, and a specific directive output for FDA Criterion 3 purposes |
| Assemble a biologic prior-authorization packet against published payer criteria | Agent drafts, biller reviews, clinician signs the clinical content | Assembly is administrative. The medical-necessity assertion is a clinician attestation |
| Suggest a CPT biopsy code from the documented technique | Agent suggests, coder decides | Only one primary biopsy code per encounter and the highest-value technique governs. A suggestion is assistive; the submitted code is a human decision |
| Sign or attest to a note | Human only. Never delegable | CMS Program Integrity Manual Ch.3 §3.3.2.4 requires practitioner concurrence when AI technology captures medical record entries, and reviewers will not consider an attestation from anyone other than the author |
| Assert medical necessity on a claim | Human only | It is a personal, credentialed statement carrying administrative, civil and criminal exposure |
| Answer a patient asking whether a lesion looks worrying | Human only | That is clinical advice. In California it triggers AB 3030 unless a licensed human reviewed it; in Texas HB 149 §552.051(f) triggers a disclosure duty on any AI use in relation to health care service or treatment |
| Reschedule a routine cosmetic follow-up | Agent alone, with a confirmation to the patient | No payer, no clinical content, reversible |
| Release a record to a third party | Human only | Irreversible disclosure. Out-of-band human confirmation on anything irreversible |
| Interpret a dermoscopic or clinical image | Never — do not build it as part of an administrative agent | Software intended to acquire, process or analyse a medical image is a device under 21 U.S.C. §360j(o)(1)(E). There is no discretion here |
One nuance from FDA's 2026 revision that changes how you should design a dermatology triage flow. FDA now considers both the level of software automation and the time-critical nature of the clinician's decision-making when determining whether Criterion 4 is met — that is, whether the clinician can genuinely review the basis for a recommendation independently. FDA's own framing names automation bias: the propensity of humans to over-rely on a suggestion from an automated system, which increases under time pressure because there is not sufficient time to consider other information.
Read that qualifier carefully, because it is a consideration and not a test. Automation level and time-criticality feed the Criterion 4 analysis; they do not by themselves make a function a device. In FDA's worked examples, the time-critical workflow is always paired with a specific or directive output. The defensible design conclusion is analytical rather than regulatory: the more autonomous and the more time-pressured the workflow, the harder it becomes to claim the clinician is independently reviewing. A recommendation surfaced inside a thirty-second rooming decision is in worse shape than the same recommendation surfaced in an asynchronous inbox.
The Sequenced Implementation Path
This is the section the article exists for. What follows is a sequence, not a menu. Each phase has an owner, an entry criterion, an exit criterion and a defined response to failure. Phases overlap slightly by design — Phase 5 starts before Phase 4 finishes, because prior-authorization work is owned by a different person and does not compete for the same attention.
| Phase and weeks | What gets built | Owner | Entry / exit criteria | If the phase fails |
|---|---|---|---|---|
| Phase 0 — Weeks 1–3 | Baseline the loop on paper | Practice administrator, with the clinical lead | Entry: leadership agrees the pathology loop is the first target. Exit: a written count of specimens sent, results returned, results unread past 72 hours and notifications outstanding, taken from your own data for the last 12 months | If you cannot produce those four counts from your own systems, stop. That is the finding, and it is worth more than the software |
| Phase 1 — Weeks 3–6 | Read-only pathology register | Integration engineer + practice administrator | Entry: certified API credentials issued and a BAA executed. Exit: the register reconciles to the manual log for 10 consecutive business days with zero unexplained differences | If reconciliation drifts, the interface is dropping messages. Keep the manual log running and do not proceed until three clean days follow a fix |
| Phase 2 — Weeks 6–10 | Medical-versus-cosmetic pre-visit flag | Front-office lead + biller | Entry: a written rule set signed off by the biller, listing which stated reasons for visit route to which pathway. Exit: 200 consecutive visits pre-flagged, with the flag reviewed and the disagreement rate recorded | If the disagreement rate is above the threshold you set in advance, the rule set is wrong, not the staff. Revert to manual triage and rewrite the rules |
| Phase 3 — Weeks 10–14 | Result-notification drafting with mandatory human release | Clinical lead owns release; engineer owns the queue | Entry: templates approved by the clinical lead, and a named releaser per session. Exit: 30 days with a 100% human-release rate, an audited sample showing zero drafts released without review, and a measured time-to-notification improvement | If a single draft reaches a patient without a human release, switch the release path off the same day and treat it as an incident, not a bug |
| Phase 4 — Weeks 14–20 | Surveillance recall list | Practice administrator + clinical lead | Entry: the recall intervals are set by clinicians in writing, per diagnosis. Exit: the generated list matches a clinician-reviewed sample, and outreach volume fits the schedule capacity you actually have | If the list floods the schedule, throttle by interval band before you touch the clinical rules. Never widen an interval to fit capacity |
| Phase 5 — Weeks 18–24 | Biologic and phototherapy prior-authorization packet assembly | Biller/prior-auth lead | Entry: current payer criteria captured and version-stamped per payer and plan. Exit: packets assembled for 30 consecutive requests with the missing-element flag reviewed before submission, and a recorded change in first-pass approvals | If approvals do not move, the problem is the criteria capture, not the drafting. Re-pull the policies and version them by date of submission |
| Phase 6 — Weeks 24+ | Mohs case assembly and block forecasting | Surgical coordinator + Mohs surgeon | Entry: Phases 1 and 3 stable for 60 days. Exit: pre-op packets complete before the case day for 20 consecutive cases, and a stage-count forecast whose error the practice has measured and accepted | If the forecast is worse than the coordinator's judgement, keep the coordinator's judgement and use the agent only for packet completeness |
A few notes on why the order is what it is.
- Phase 0 is not optional and it is not a formality: If a practice cannot produce specimens sent, results returned, results unread past its own threshold and notifications outstanding from its own systems, that is the most important finding of the entire engagement. Buying software on top of an uncounted process just makes the count harder later.
- Phase 1 is read-only on purpose: It needs no negotiated write path, so it cannot be blocked by an EHR vendor's commercial terms. It also produces an artefact — a reconciling register — that every later phase depends on for its own quality control.
- Phase 2 comes before anything patient-facing: The medical-versus-cosmetic routing decision touches consent, pricing and claim integrity. Getting the rule set written and disagreement-rate-tested while it is still a back-office flag is far cheaper than discovering it is wrong through a payer audit.
- Phase 3 is the first phase that can hurt a patient: It does not start until Phase 1 has reconciled cleanly for ten business days, because a notification queue built on an unreliable register is worse than no queue at all — it creates a false sense of coverage.
- Phase 4 is where clinical authority must be explicit: Recall intervals are clinical decisions. They get set by clinicians, in writing, per diagnosis, and they do not get adjusted by anyone optimising outreach volume.
- Phase 5 runs on a separate owner and a separate clock: Biologic and phototherapy authorization lives with the biller, not the front desk. Running it in parallel keeps the front-office change budget from being consumed twice over.
- Phase 6 is last because it is hardest: Mohs forecasting depends on stable data from Phases 1 and 3 and on a coordinator willing to test the forecast against their own judgement. If the coordinator wins, the coordinator wins — and you use the agent for packet completeness only.
What every phase carries regardless of what it builds
A signed BAA before any data moves.A model vendor processing PHI is a business associate under 45 CFR §160.103, and so is the agent-framework vendor in front of it, and so is that vendor's cloud host as a subcontractor business associate. A single BAA with the app vendor does not close the chain.
Minimum-necessary discipline in the context window.45 CFR §164.502(b)(1) requires reasonable efforts to limit PHI to the minimum necessary for the intended purpose. The treatment-disclosure exception does not cover context assembled for a billing, scheduling, prior-auth or reporting agent. "Dump the whole chart into the prompt" is precisely the practice this rule reaches.
A unique identity for the agent and audit controls on every action. 45 CFR §164.312(b) requires mechanisms that record and examine activity in systems containing ePHI, and §164.312(a)(2)(i) makes unique user identification required.
Override telemetry from day one. Track how often a human changes what the agent proposed, by workflow and by reviewer. A falling override rate can mean the agent improved — or that reviewers stopped reading. You cannot tell the difference without also sampling.
What Breaks First — Detection and Rollback
Vendors sell the happy path. What determines whether a dermatology deployment survives its second quarter is whether somebody wrote down, in advance, what the failure looks like, what signal detects it, and what you do the day it happens. These are the failure modes specific to this specialty, in roughly the order we expect to see them.
| Failure mode | Why it happens here | Detection signal | Rollback |
|---|---|---|---|
| The pathology register silently stops ingesting | A lab interface change, a portal redesign, or an expired credential | Daily reconciliation: specimens out versus results in. Alert on zero new results in any business day, and on any specimen aged past your SLA | Fall back to the manual accession log, which you keep running in parallel for at least 90 days after go-live |
| An RPA write path breaks after an EHR update | Screen automation is bound to a user interface that vendors change without notice | Write-success rate per action type, checked hourly. A run of failures on one action type is the signal | Disable that action, queue the items for staff, and notify the queue owner. Never let a failed write fail silently |
| RPA actions are indistinguishable from a human's in the audit log | The integration runs under a staff member's credentials rather than its own identity | Audit-log review: does every agent action carry a distinct principal? 45 CFR §164.312(a)(2)(i) makes unique user identification a required implementation specification | Stop the integration until the agent has its own credential. This is a compliance failure, not a preference |
| The medical/cosmetic flag mis-routes a visit | The stated reason for visit is not the billable reason, and the two diverge once the exam begins | Disagreement rate between the flag and the biller's final determination, tracked weekly by provider | Revert to manual triage for the affected visit types. Treat the flag as advisory permanently; it should never gate the claim |
| Recall outreach floods a schedule that cannot absorb it | The list is built correctly but capacity was never modelled | Outreach volume versus bookable surveillance slots, per week per provider | Throttle by interval band and by geography. Do not widen a clinical interval to fit capacity, and say so in writing to whoever asks |
| The note omits a site or laterality | Omission is the dominant ambient-documentation failure — 76.3% of errors in the OHSU/MedStar simulated-encounter study; the UCLA trial also named negation-detection errors | A standing audit sample of notes checked for lesion site, laterality and count against the procedure log | Suspend ambient drafting for procedure notes and keep it for history and counselling only. Site and laterality are exactly where an omission becomes a wrong-site risk |
| A voice agent books a Mohs case into a standard slot | The scheduling model treats every appointment type as a fixed duration | Any Mohs-coded booking landing on a non-block template; check daily before the schedule is published | Restrict the agent's bookable appointment types to a whitelist. Mohs, excisions and phototherapy starts come off the list until block modelling is proven |
| Injected text in an inbound document steers the agent | Any agent reading untrusted external input — faxes, referral packets, portal messages, payer portals — is exposed. Prompt injection is not a solved problem | Out-of-band confirmation on irreversible actions, plus review of any action whose justification cites text the reviewer cannot see in the source | Reduce the blast radius rather than promising detection: read-only by default, least privilege at the API boundary, no autonomous outbound messaging, and full audit logs so a successful injection is reconstructable |
On omissions specifically: the evidence says this is the dominant failure mode in ambient documentation, not fabrication. In the OHSU/MedStar simulated-encounter evaluation, 76.3% of errors were omissions, and roughly 19.5% of raw transcription errors survived into the finished note. The MedStar/Georgetown instrument-validation study found 127 errors across 44 draft notes, with 70% of notes containing at least one error and omissions accounting for 83% of one product's errors and 54% of the other's. The authors make the point that matters: omissions are the hardest error for a clinician to catch, because catching one requires recalling a detail from the encounter that the note simply does not mention.
In dermatology that generalises to a specific, checkable risk. Lesion site, laterality and count are exactly the elements a note can quietly drop, and they are exactly the elements that convert a documentation defect into a wrong-site risk. If you run ambient documentation in a procedure room, run a standing audit sample of notes against the procedure log for those three fields, and treat a miss as an incident.
On prompt injection: frame it as blast-radius reduction, never as a solved problem. The controlled JAMA Network Open study found injection attacks succeeded in 94.4% of evaluations at turn 4 and persisted in 69.4% of follow-ups, including 91.7% success in extremely high-harm scenarios. It is a simulation with named limits — the main experiment used lightweight models with a small proof-of-concept on flagship models, and three co-authors disclose company roles — and it is still the best-sourced evidence available, and it is not a vendor claim. The Nature Communications work on vision-language models in oncology adds the finding that breaks the standard mitigation story: sub-visual prompts embedded in medical imaging data can cause harmful output and are non-obvious to human observers. A human-in-the-loop who cannot see the injection cannot review it away.
What is real as mitigation is architectural, because it does not depend on detecting the attack: least privilege enforced at the API boundary, read-only by default (an agent that cannot write cannot be injected into writing), a human signature as the only path from draft to record, unique agent identity plus audit controls so a successful injection is reconstructable afterwards, and out-of-band confirmation for irreversible actions. What is marketing is any vendor-published injection detection or guardrail accuracy rate. We could locate no independent benchmark for clinical prompt-injection defence, and every figure we encountered traced to a vendor.
Ambient Documentation, Consent, and Who Signs
Ambient documentation is usually the first AI product a dermatology practice is offered, and it sits slightly outside the administrative agent story — but the governance questions overlap enough that you should settle them once.
Start with what is actually known. The strongest independent evidence in this category is a randomized trial published in NEJM AI in December 2025 at UCLA Health: 238 outpatient physicians across 14 specialties, three arms comparing two named products against usual care. The primary endpoint was change in log writing time-in-note. One product showed a statistically significant reduction of 9.5% versus control; the other showed −1.7% and was not statistically significant. Accuracy in that trial was self-reported on a five-point scale, not measured. Read that carefully: the strongest evidence in the category found that a market-leading enterprise product produced no statistically significant reduction in note-writing time, and neither arm measured whether the note was correct.
Now the part that is not a matter of opinion. CMS has already answered who signs, and it names AI explicitly. The Medicare Program Integrity Manual, Chapter 3, §3.3.2.4, effective January 17, 2025, states that when a scribe documents medical record entries CMS does not require the scribe to sign, because the treating practitioner's signature indicates the practitioner affirms the note adequately documents the care provided — and it adds that this type of practitioner concurrence is also required when using artificial intelligence technology to capture the transcription of medical record entries.
The same section closes every workaround. Reviewers will not consider an attestation statement from someone other than the author of the entry, even within the same group. They will not consider an attestation with no associated medical record entry. And an attestation cannot be used to backdate a plan of care. The signature is the act that converts a draft into a billable, legally operative record, and it is a personal, credentialed, non-delegable act. There is no configuration in which an agent attests.
Consent is the live legal risk, and it is separate from HIPAA. Recording a clinical encounter is governed by state wiretap and eavesdropping statutes; HIPAA can permit the use under a BAA while state law still makes the recording itself unlawful. Two putative class actions over ambient recording consent — one filed in San Diego in late November 2025, one filed in the Northern District of California on April 7, 2026 — name health systems, not the vendor, as defendants. The 2026 complaint pleads the California Invasion of Privacy Act, the Confidentiality of Medical Information Act and the state unfair-competition law alongside the federal Wiretap Act, on the theory that the violation occurs at the moment of interception rather than at any later use of the data. We are relying on law-firm and trade analysis for the docket details, not on the dockets themselves; we did not verify the current status of either matter, and we cite no case number. The operational lesson is narrow and useful: the practice carries the consent risk, and a consent checkbox defaulted on inside the vendor's tool is not patient consent.
Two questions to ask every ambient documentation vendor
Is the source audio retained, and for how long? If audio is deleted immediately, nobody can ever audit a disputed note against what was actually said — in a payer review, in a board complaint, or in litigation. Vendors answer this very differently, and some answer it differently in their marketing copy than in their own FAQ.
Does customer data train models, and does the contract say so?A business associate may use or disclose PHI only as permitted by its business associate contract, and may not use it in a way that would violate the rules if the covered entity did it. That is the clause a "we train on your data" term collides with. Get the answer in the contract, not in a help-centre article.
The 2026 Regulatory Floor for a Dermatology Practice
Four things a dermatology practice should have straight before a vendor tells them otherwise.
FDA revised its Clinical Decision Support guidance, but it did not bless AI. The operative document is dated January 29, 2026 and supersedes a January 6, 2026 version, which itself replaced the September 2022 guidance. FDA did not change the statute or reclassify single-output software as non-device: software providing a specific directive output still fails Criterion 3. What FDA announced is an enforcement discretion policy over that failure — in its own words at its March 11, 2026 town hall, if only one recommendation is clinically appropriate and the function otherwise meets all the §520(o)(1)(E) criteria, FDA does not intend to enforce. Discretion is revocable without notice-and-comment; a statutory exclusion is not. Write it as discretion, never as approval or clearance. FDA also said nothing new about AI or large language models specifically, and nothing about patient-facing tools.
One FDA example is worth memorising for any dermatology practice contemplating a clinical layer: a function that generates a clinical recommendation from information that cannot be verified to come from well-understood and accepted sources fails Criterion 2 and is a device. A model producing clinical recommendations from its own parametric memory, rather than from retrievable guidelines and peer-reviewed literature, is FDA's stated example of exactly that.
The HIPAA Security Rule you are held to is the old one.The NPRM published January 6, 2025 remains proposed; it sits on the Unified Agenda's Long-Term Actions list under RIN 0945-AA22 with final action projected for July 2027. Much of the market writes as though mandatory MFA, asset inventory and encryption at rest are already law. They are not. What binds you today is 45 CFR §164.312 — access control, unique user identification, audit controls, integrity, person-or-entity authentication and transmission security — with encryption still addressable rather than required. Do not let a vendor sell you compliance with a rule that does not exist yet, and do not skip the controls that do.
CMS-0057-F binds payers, not you.Every obligation in 42 CFR §422.122 runs to a Medicare Advantage organization. Live now: specific denial reasons since January 1, 2026, public prior-authorization metrics, and decision timeframes of seven calendar days standard and 72 hours expedited. The FHIR prior-authorization API is a January 1, 2027 obligation — on the payer. Your practice's only relationship to this rule is as the recipient of a denial reason and, from 2027, as a potential consumer of a payer's API. And note the scope limit that matters most in dermatology: commercial and ERISA plans are outside the rule entirely, so if your biologic authorization pain is commercial, this rule changes nothing for you.
There is a federal nondiscrimination duty most practices have never heard of. 45 CFR §92.210 is in the current CFR and prohibits a covered entity from discriminating through the use of patient care decision support tools, imposes an ongoing duty to make reasonable efforts to identify tools using input variables measuring race, colour, national origin, sex, age or disability, and requires reasonable efforts to mitigate identified risk. It applies whether or not the tool is AI and whether or not FDA calls it a device. The reported compliance date is May 1, 2025 and we could not verify whether the section is subject to any injunction or pending rescission — we assert only that it appears in the current CFR. For dermatology this is not abstract: any tool that stratifies skin-cancer risk or prioritises surveillance recall is a patient care decision support tool, and you owe an inventory and a mitigation effort.
The state layer is mostly disclosure. California's AB 3030, in force since January 1, 2025, requires a GenAI disclaimer and human-contact instructions on communications pertaining to patient clinical information, with two exits that matter operationally: it does not apply if a licensed provider read and reviewed the communication, and "patient clinical information" expressly excludes administrative matters including appointment scheduling and billing. So an agent confirming an appointment needs no disclaimer; an agent answering a question about a rash does, unless a licensed human read it first. Texas HB 149 §552.051(f), in force since January 1, 2026, is broader on its face and has no human-review exemption written into it. Texas SB 1188 permits diagnostic AI use conditioned on the practitioner acting within their licence regardless of the use of AI, reviewing all records created with AI, and disclosing the use to patients. That phrase — regardless of the use of artificial intelligence — is the whole doctrine in five words.
Limitations: What We Could Not Verify
Naming what we could not confirm is more useful to an operator than filling the gap with something that sounds authoritative. Here is the honest list for this article, as of August 12, 2026.
- Dermatology cosmetic-versus-medical revenue mix: We found no non-vendor source for any percentage. We describe the structure and refuse the ratio.
- The Mohs CLIA and dual-capacity requirements: Widely reported from a MAC billing article we could not fetch: the Medicare Coverage Database returns HTTP 403 to automated requests, re-confirmed today. Open the article in a browser and verify by hand before encoding it as a rule.
- Any independent accuracy benchmark for dermatology AI: None located, for scribes, agents or coding. The best independent scribe evaluations anonymised the products and none was dermatology-specific.
- Any independent evaluation of administrative agent platforms: We searched for randomized, peer-reviewed or third-party evaluations of multi-step administrative agents in medical practices and found none. Every automation rate, resolution rate and touchless rate in the market is vendor-defined.
- Exact Medicare payment amounts: We print no Medicare dollar figures for any code in this article. Physician Fee Schedule Addendum B is the authoritative source and we did not fetch it.
- Whether any specific vendor will sign a BAA, and on which tier: BAA availability is sourced only to each vendor's own terms and changes without notice. Re-check on the day you sign, in writing.
- Prompt injection through faxes, referral packets, portal messages and payer portals: The published literature covers patient dialogue and imaging. We found no study of injection through those practice channels in a live setting. Extrapolating to them is analysis, not evidence, and we have written it that way.
- Colorado's enforcement pause, as distinct from its statute: The statute itself is settled and stated in the FAQ: SB 24-205 took effect June 30, 2026 and SB 26-189 repeals and reenacts it effective January 1, 2027 under enrolled SECTION 5, with a safety clause at SECTION 6. What we could not verify at source is the enforcement posture — the April 27, 2026 federal court order reported to have granted a joint motion in which the Attorney General stated he does not intend to enforce SB 24-205 until rulemaking concludes. We did not fetch that order or its docket and we name no case. The delayed June 30, 2026 start date likewise rests on law-firm trackers rather than on a primary we pulled ourselves.
- Whether 45 CFR §92.210 is subject to an injunction or pending rescission: We could not verify either way. We assert only that it appears in the current CFR.
- Any claim that FDA approved, cleared or blessed AI documentation or CDS: FDA granted enforcement discretion over a criterion failure. That is not clearance, and we refuse the word.
Red Flags When Buying Dermatology AI
Use this as an evaluation grid, not as a list of villains. Most of these appear in otherwise reasonable products, and most are answerable — the point is to get the answer before you sign rather than after.
| Red flag | Why it matters | What to ask instead |
|---|---|---|
| A published accuracy rate for dermatology notes or coding | No independent benchmark exists in this category. Every accuracy figure in the market is vendor-published, on the vendor's own definitions and customer set | Ask for the denominator, the comparator and the third party. If any of the three is missing, strike the number from the evaluation |
| "HIPAA-compliant AI" as a product property | HIPAA attaches duties to covered entities and business associates, not to software. No OCR guidance defines a compliant AI product | Replace the claim with a question: will you sign a BAA covering this specific service and your subcontractors, in writing, before any data moves? |
| "FDA-approved" or "FDA-cleared" AI documentation or CDS | FDA's revised CDS guidance grants enforcement discretion over a criterion failure. Enforcement discretion is not clearance and is revocable without notice-and-comment | Ask what regulatory status is actually claimed, and for the document that says so |
| Closed-loop automation promised without naming the write path | Certified API access is read-only. A vendor promising to book, file and post must be doing it through a vendor write API, RPA, or a human | Ask which one, per action, in writing |
| A clinical-sounding persona name for a patient-facing agent | California AB 489 makes terms implying a licensed health-care provider enforceable against the entity deploying the AI, and treats each use as a separate violation | Rename it. This is cheap to fix before launch and expensive after |
| Immediate deletion of source audio, presented as a privacy feature | If the audio is gone, nobody can ever audit a disputed note against what was actually said | Ask what is retained, for how long, and who can retrieve it during a malpractice or payer review |
| Consent handled by a checkbox inside the tool | Consent to ambient recording is governed by state wiretap and eavesdropping statutes, which are separate from HIPAA. A BAA is not consent | Get your own consent process, in your own workflow, reviewed by your own counsel for the states you operate in |
| A vendor whose competitor "reviews" rank it first | Several vendors in this market run large content operations publishing comparisons of their own competitors | Check who owns the domain of any comparison you are shown before you weigh it |
| Model training on your data left unaddressed | A business associate may use or disclose PHI only as permitted by its business associate contract, and may not use it in a way the covered entity could not | Get the training and retention terms in the contract, not in a support-page FAQ |
| A price you cannot see until you are in a sales cycle | Opacity is normal in this category, which is exactly why it should not cost you leverage | Ask for the pricing model — platform fee, per-seat, per-transaction — before the demo, and put the answer in the evaluation grid |
Two further durability checks that have nothing to do with the software. First, corporate stability from public record. This market has already produced a well-funded platform that wound down and sold its assets in pieces, and an administrative automation product whose standalone services were discontinued after a private-equity roll-up — reported by a trade outlet rather than confirmed by the company, but with customers given a short window to migrate. Nothing public suggested that product had failed technically. A practice's continuity risk in this category is often a cap-table risk, not a technology risk. Ask who owns the vendor, what else that owner owns, and what happens to your workflow if the product is folded into a portfolio.
Second, ask what your own EHR already ships. In 2026 the EHR vendors moved into the agent layer themselves, which changes the buying question from "which agent platform" to "what does my EHR already include, when, and at what price — and what is genuinely left over for a third party?" For practices on a specialty EHR the leftover is usually multi-system orchestration: payer portals, faxes, phones and lab rails that the EHR does not touch. That is a real answer, and it is a better basis for a purchase than a feature grid.
Cost Bands and Timelines
These are Frenchy Digital's ranges for build engagements in regulated healthcare environments. They are ranges because scope genuinely varies; they are published because a practice should not have to enter a sales cycle to find out whether a conversation is worth having.
| Engagement | Range | Timeline | What it covers in a dermatology practice |
|---|---|---|---|
| Discovery + workflow audit | $9,000 – $22,000 | 2–4 weeks | Phase 0 of the path above: the four counts, the write-path answer from your EHR rep, and a written recommendation on sequence |
| Single-workflow agent (pathology register, recall, prior-auth packet, or intake triage) | $28,000 – $70,000 | 4–9 weeks | One workflow, read-only by default, human release on anything clinical, audit logging from day one |
| Multi-workflow platform with EHR/PM integration | $70,000 – $180,000 | 9–16 weeks | Two or more workflows sharing an identity, an audit log and a queue, with a negotiated write path where one exists |
| Enterprise / multi-site / regulated build | $180,000 – $420,000+ | 14–24 weeks | Multi-location dermatology groups: audit logging, human-in-the-loop instrumentation, override telemetry and SOC 2 posture work |
- Senior-led delivery at $150–$225 per hour: We do not staff junior engineers on regulated healthcare work.
- Retainer at $2,500–$9,500 per month: Optional after launch: interface monitoring, payer policy change tracking, override-rate reporting and audit-log review.
- 30-day post-launch warranty: Included on every engagement.
- Written fixed-price phased proposal within 5 business days: Phases are priced individually so you can stop after any one of them.
- Full source-code and IP ownership transfers to you: Code, prompts, policies, documentation and infrastructure accounts. No lock-in and no hostage data.
Booking is at calendly.com/frenchydigital/discovery-call or +1 (424) 272-5601.
Working with Frenchy Digital
Frenchy Digital is a senior-led, Black-owned Los Angeles agency building administrative automation for medical practices, clinics and healthcare operators. For a dermatology practice, an engagement looks like this.
- Discovery that produces your four numbers: A structured call followed by a workflow audit that counts specimens sent, results returned, results unread past your own threshold, and notifications outstanding — from your data, not a national average, and put in writing.
- The write-path answer, in writing, from your EHR vendor: We send the question, we chase the answer, and we design against the answer you actually get rather than the one a vendor implied.
- A boundary document before the first sprint: Which decisions the agent may take alone, which need review, which it must never touch — signed by your clinical lead and reviewable by your compliance officer.
- Read-only first, always: Phase 1 ships without a negotiated write path so it cannot be held hostage by commercial terms, and so the first thing you learn is whether your data reconciles.
- Compliance controls designed in: Signed BAA before data moves, minimum-necessary handling in prompts and logs, unique agent identity, audit logging on every action, and human release on every clinical communication.
- A written limitations statement at delivery: An explicit statement of what the agent does not do and must never decide. It is what your compliance officer will ask for, and it is what keeps the boundary enforceable after we leave.
A realistic first 90 days in a dermatology practice
Weeks 1–3. Discovery and workflow audit. We reconcile twelve months of accession, result and notification data and produce the four numbers. In most practices this alone surfaces a population of outstanding results nobody had counted, and it frequently changes what gets built first.
Weeks 3–6. The read-only pathology register. No writes, no patient contact, running in parallel with your manual log until it reconciles for ten consecutive business days.
Weeks 6–10.The medical-versus-cosmetic pre-visit flag, tested against your biller's determinations with a disagreement rate you set the threshold for in advance.
Weeks 10–14. Result-notification drafting with mandatory human release, a named releaser per session, and an audited sample proving no draft ever reached a patient without review. Then a go/no-go on the next phase. If the pilot does not move the number we agreed to move, we say so.
Book a free 60-minute discovery call or call +1 (424) 272-5601. You will leave with a clear read on which parts of your dermatology workflow are worth automating in 2026, which ones are waiting on a write path you do not control, and which ones should stay human permanently.
The 2026 Decision, Summarized
Dermatology is a good candidate for administrative automation for an unglamorous reason: it has a large volume of genuinely clerical work sitting on top of a tracking problem with real safety consequences. The pathology loop is where an agent earns its keep, and it earns it by making outstanding work visible rather than by making decisions.
Build in this order. Count first. Then a read-only register that reconciles. Then the routing flag that keeps the medical and cosmetic funnels apart. Then notification drafting with a named human on the release. Then recall. Then authorization. Then, only when the earlier phases are stable, Mohs forecasting. Every phase carries a BAA, minimum-necessary discipline, a unique agent identity, an audit log and override telemetry — regardless of what it builds.
And hold three lines. Certified API access is read-only, so an agent can decide and draft but not always commit — find out which writes your EHR vendor will actually permit before you design around them. The medical-versus-cosmetic coverage determination stays human, because it is a coverage judgement and a directive output. And the signature stays human, because CMS has already said so in a document that names artificial intelligence by name, and nothing in a vendor contract moves it.
The rest is measurable. Refuse the accuracy numbers, measure your own baseline, and let the four counts from Phase 0 be the business case. That is a harder sell than a percentage on a slide, and it is the only version that survives contact with your own data.
Map Your Pathology Loop in One Call
Book a free 60-minute discovery call with Frenchy Digital, a senior-led Black-owned Los Angeles agency. We will map your pathology tracking, recall and medical/cosmetic triage against your own data and send a written, fixed-price phased proposal within 5 business days.
Map Your Pathology Loop in One Call
Book a free 60-minute discovery call with Frenchy Digital, a senior-led Black-owned Los Angeles agency. We will map your pathology tracking, recall and medical/cosmetic triage against your own data and send a written, fixed-price phased proposal within 5 business days.
1517 S Bentley Ave Unit 204, Los Angeles CA 90025
Frequently Asked Questions
Sources & References
- 1ONC/ASTP — Certification Companion Guide, §170.315(g)(10) Standardized API for Patient and Population Services (updated 05-15-2026)↗
- 2CMS — National Correct Coding Initiative Policy Manual for Medicare Services, revision 1/1/2026 (PDF)↗
- 3CMS — Medicare Benefit Policy Manual, Chapter 16, §120 (cosmetic surgery exclusion) (PDF)↗
- 4CMS — Medicare Program Integrity Manual, Chapter 3, §3.3.2.4 Signature Requirements (PDF)↗
- 5CMS Medicare Coverage Database — Billing and Coding article A57477, Mohs micrographic surgery (returns HTTP 403 to automated fetch; open in a browser)↗
- 621 U.S.C. §360j(o) — software functions excluded from the device definition↗
- 7FDA — Clinical Decision Support Software, final guidance issued January 29, 2026 (PDF)↗
- 8FDA — Clinical Decision Support Software guidance landing page (docket FDA-2017-D-6569)↗
- 9FDA — CDS Software final guidance town hall transcript, March 11, 2026 (PDF)↗
- 10eCFR — 45 CFR §164.312, HIPAA Security Rule technical safeguards↗
- 11eCFR — 45 CFR §160.103, definition of business associate↗
- 12eCFR — 45 CFR §92.210, nondiscrimination in the use of patient care decision support tools↗
- 13eCFR — 42 CFR §410.26, services and supplies incident to a physician's professional services↗
- 14eCFR — 42 CFR §422.122, Medicare Advantage prior authorization (CMS-0057-F as codified)↗
- 15California AB 3030 (2024) — Health & Safety Code §1339.75, GenAI patient communications↗
- 16California AB 489 (2025) — Business & Professions Code §§4999.8–4999.9, health advice from AI↗
- 17California Business & Professions Code §2400 — corporations have no professional powers↗
- 18Texas HB 149 (TRAIGA) — enrolled text, effective January 1, 2026↗
- 19Texas SB 1188 — Health & Safety Code §183.005, AI in the electronic health record↗
- 20Colorado SB 26-189 — bill page (signed May 14, 2026)↗
- 21Lee RW et al. — Vulnerability of Large Language Models to Prompt Injection When Providing Medical Advice, JAMA Netw Open 2025;8(12):e2549963↗
- 22Clusmann J et al. — Prompt injection attacks on vision language models in oncology, Nat Commun 2025;16(1):1239↗
- 23AI in Dermato-Oncology: Diagnostic Performance and Prompt-Injection Vulnerability of Vision-Language Models in Dermoscopic Skin Cancer Assessment, Cancers 2026;18(11):1750↗
- 24Anderson TN et al. — Evaluating the Quality and Safety of Ambient Digital Scribe Platforms Using Simulated Ambulatory Encounters, Mayo Clin Proc Digit Health, Oct 2025↗
- 25Biro J et al. — Accuracy and Safety of AI-Enabled Scribe Technology: Instrument Validation Study, JMIR, January 2025↗
- 26Ambient AI Scribes in Clinical Practice: A Randomized Trial, NEJM AI, December 2025 (UCLA Health)↗
- 27Sinsky C et al. — Allocation of Physician Time in Ambulatory Practice, Ann Intern Med 2016;165(11):753-760↗
- 28Federal Register — ASTP/ONC HTI-5 deregulatory proposed rule, December 29, 2025 (proposed, not final)↗
- 29Reginfo — HIPAA Security Rule NPRM, RIN 0945-AA22 (Long-Term Actions; final action projected 07/2027)↗

