From Health 201AI Med Risk

documented ai-in-healthcare failures — what went wrong, why, and what might have helped, synthesised from public sources


Questions for deploying clinical models

Use your own judgment. Nothing here is authoritative or definitive advice: these are general suggestions drawn from existing cases, generalized from public reports of incidents and responses, not tested or validated for any setting. Health systems are complex and there is no one-size-fits-all recipe: adapt anything here with qualified clinical, legal and regulatory advisers, and do not rely on it as a standard, certification or guarantee of safety or compliance. Full disclaimer.

For teams looking at prediction, triage, allocation, coverage and documentation tools. Questions drawn from the incidents, and signals the incidents point to after go-live, each linked to the incidents behind it and to standards and laws that cover the same ground. They are prompts, not a certification or a complete list; what fits depends on your setting.

Questions before go-live

1.Is regulatory status confirmed for this intended use and jurisdiction?

Behind this (2): FDA recall: machine-learning shoulder-surgery outcome predictor Predict+ withdrawn from US market for lack of clearance · FDA recall: Copan's AI culture-plate reader PhenoMATRIX used in US labs without clearance, risking inaccurate colony counts

Tried so far:

2.Is there external validation on a comparable population, with results you can read rather than a vendor summary?

Behind this (2): Epic sepsis model missed two-thirds of sepsis cases in external validation · NOHARM benchmark: leading medical AI tools give severely harmful recommendations in up to 1 in 4 cases

Tried so far:

3.Was validation run by people outside the product team, with test records that cannot be altered?

Behind this (1): Whistleblower suit alleges Mayo Clinic hid AI assistant's 67% error rate

Tried so far: no published fix or mitigation for these incidents yet.

4.Was there a shadow-mode period alongside the existing process before cutover?

Behind this (1): Brazilian state's AI bed-allocation algorithm undertriaged dying woman, delaying ICU transfer five days

Tried so far: no published fix or mitigation for these incidents yet.

5.Are contraindications and population exclusions encoded in the logic?

Behind this (2): STAT investigation: hospital AI sepsis alert nearly triggered fatal fluid overload in dialysis patient, exposing nurse exclusion from AI governance · NEDA's 'Tessa' chatbot gave weight-loss advice to eating-disorder users

Tried so far:

6.Is there a named clinician review step and an explicit, unpenalised override?

Behind this (3): Class action alleges UnitedHealth used naviHealth's nH Predict algorithm, with a 90% error rate, to deny Medicare Advantage post-acute care · NUHW complaint: Kaiser Permanente used unsupervised algorithm to triage mental health patients · Brazilian state's AI bed-allocation algorithm undertriaged dying woman, delaying ICU transfer five days

Tried so far:

7.Are frontline staff, including nurses, part of the group that approves the tool?

Behind this (1): STAT investigation: hospital AI sepsis alert nearly triggered fatal fluid overload in dialysis patient, exposing nurse exclusion from AI governance

Tried so far: no published fix or mitigation for these incidents yet.

8.Are patient disclosure, consent where required, and a non-AI pathway in place?

Behind this (2): Digital Rights Watch: Australian AI medical scribes run with no regulatory oversight, patients denied care for refusing them · Vermont pharmacy chain pulls back AI phone assistant after it garbled drug names and produced wrong, duplicate refills

Tried so far:

9.Is there a change-control plan saying which updates trigger re-validation and who signs off?

Behind this (2): NEDA's 'Tessa' chatbot gave weight-loss advice to eating-disorder users · Whistleblower suit alleges Mayo Clinic hid AI assistant's 67% error rate

Tried so far:

After go-live: signals the incidents point to

SignalRather than onlyFrom
Real-world sensitivity against confirmed outcomesthe number of alerts firedEpic sepsis model missed two-thirds of sepsis cases in external validation
Appeal-overturn rate for model-influenced denialsthe share of patients who appealClass action alleges UnitedHealth used naviHealth's nH Predict algorithm, with a 90% error rate, to deny Medicare Advantage post-acute care
Error rate in medication and dose fields, checked against source audioclinician satisfaction with note qualityOntario auditor general: approved medical AI scribes hallucinated and misrecorded drugs · Whisper transcription tool fabricating text in medical settings
Override frequency and the outcomes of overridden casescompliance with the algorithmBrazilian state's AI bed-allocation algorithm undertriaged dying woman, delaying ICU transfer five days · STAT investigation: hospital AI sepsis alert nearly triggered fatal fluid overload in dialysis patient, exposing nurse exclusion from AI governance
Complaint volume on patient-facing tools, treated as a safety signalcall-deflection or automation rateVermont pharmacy chain pulls back AI phone assistant after it garbled drug names and produced wrong, duplicate refills
Safety events reported through a protected, blinded channelan absence of reportsWhistleblower suit alleges Mayo Clinic hid AI assistant's 67% error rate

Standards, guidance and laws

SourceWhat it coversSafeguards
Responsible Use of AI in Healthcare
The Joint Commission and Coalition for Health AI · 2025-09 · guidance
Seven elements for health systems: governance, local validation, risk-based monitoring, blinded AI safety-event reporting, patient disclosure and consent.Independent validation and ongoing monitoring Clinician review as a real checkpoint Disclosure, consent and a non-AI option Change control and independent sign-off
AI-Enabled Device Software Functions: Lifecycle Management and Marketing Submission Recommendations (draft)
US FDA · 2025-01 · guidance · on Clingantry
Lifecycle expectations for AI devices: validation, transparency, performance monitoring after authorisation.Independent validation and ongoing monitoring Change control and independent sign-off
Predetermined Change Control Plans for AI-enabled devices
US FDA · 2024-12 · guidance
Manufacturers pre-specify which model changes are allowed and how each is validated, instead of shipping silent updates.Change control and independent sign-off
HTI-1 decision support intervention transparency
US ONC (ASTP) · 2024-01 · rule · on Clingantry
Certified EHRs must expose source attributes for predictive decision support: intended use, validation, and known risks.Independent validation and ongoing monitoring Disclosure, consent and a non-AI option
AI Risk Management Framework
US NIST · 2023-01 · framework
Govern, map, measure and manage: the general-purpose risk process most health AI governance programmes build on.Independent validation and ongoing monitoring Change control and independent sign-off
Ethics and governance of AI for health: guidance on large multi-modal models
World Health Organization · 2024-01 · guidance
Obligations for developers, providers and deployers of generative AI in health, including human oversight and transparency.Clinician review as a real checkpoint Disclosure, consent and a non-AI option
AI Scribes: Key Considerations for the Health Sector
Information and Privacy Commissioner of Ontario · 2026-01 · guidance
Vendor assessment, contractual safeguards, ongoing monitoring and governance for AI scribes, with a companion checklist.Independent validation and ongoing monitoring Disclosure, consent and a non-AI option Clinician review as a real checkpoint
Digital scribes
Australia TGA · 2025-08 · guidance
Transcription-only scribes are not medical devices; scribes that interpret, diagnose or recommend are, and must be registered. Compliance action began in August 2026.Change control and independent sign-off
California SB 243, companion chatbots
State of California · 2026-01 · law
In force January 1, 2026. Companion-chatbot operators must keep a protocol that prevents suicide and self-harm content and refers at-risk users to crisis services, disclose AI to minors, and prompt breaks.Crisis escalation that holds up Disclosure, consent and a non-AI option
Illinois HB 1806, Wellness and Oversight for Psychological Resources Act
State of Illinois · 2025-08 · law
Bans AI from providing therapy or making therapeutic decisions; AI may only support licensed professionals with administrative tasks.Clinician review as a real checkpoint Disclosure, consent and a non-AI option
Utah HB 452, mental health chatbots
State of Utah · 2025-05 · law
Mental-health chatbots must disclose they are AI and protect user health data; a safe harbour rewards pre-deployment testing, crisis escalation, clinical oversight and monitoring.Crisis escalation that holds up Disclosure, consent and a non-AI option Independent validation and ongoing monitoring
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Not medical or legal advice. This site documents how AI systems have failed; it is not a source of care or advice. For a health problem, seek medical attention or talk to a health professional; in an emergency, call 911 or your local emergency number. For legal questions, consult a lawyer.

If you are in crisis: in the US, call or text 988 (Suicide & Crisis Lifeline). Elsewhere, see findahelpline.com.

To report harm from an AI tool, contact the relevant authority: see where to report a problem. AI Med Risk does not take complaints or act on individual cases.