All terms
Health Hazard Evaluation
Structured assessment of patient/user risk used to support recall classification and field-action decisions.
Reviewed by Christian Espinosa, Founder, Blue Goat CyberLast reviewed September 19, 2026
Definition
An HHE evaluates the disease/condition affected, severity of consequence, probability of occurrence, exposed population, and mitigations. The output supports recall classification (I/II/III) and the urgency of customer notification. HHEs are usually done by a cross-functional team, including clinical or medical input, and should be based on facts from complaints, investigations and risk management files. The conclusions decide whether an action is a recall, its classification and the depth of notification. FDA performs its own health hazard evaluation when classifying a recall, and differences from the firm's view can lead to a higher class. What the regulation says
The FDA, under 21 CFR Part 7, Subpart C, mandates a health hazard evaluation to assess the risk posed by a violative product and classify recalls accordingly. This assessment informs the recall strategy, including the depth of the recall and public warning. Similarly, ISO 14971:2019, though broader in scope, requires organizations to evaluate risks associated with medical devices, which aligns with the principles of an HHE.What this means in practice
FDA recall coordinators frequently require an updated HHE during recall negotiation; pre-built templates accelerate response.Examples
- A manufacturer performs an HHE after discovering a software bug that could cause inaccurate therapy delivery, determining a Class I recall is necessary due to potential serious injury or death.
- Following a customer complaint of device malfunction, an HHE assesses the likelihood of patient harm to classify a recall as Class II, requiring device correction and customer notification.
- An HHE is conducted for a labeling error that does not directly impact device function or patient safety, resulting in a Class III recall for minor product correction.
Common pitfalls
- •Failing to update an HHE when new information or complaints emerge can lead to an incorrect recall classification.
- •Underestimating the severity of a health consequence can result in an inadequate recall strategy.
- •Not clearly documenting the HHE methodology and conclusions can lead to regulatory scrutiny.
- •Confusing a health hazard evaluation with a routine risk assessment can misdirect post-market activities.
- •Delaying the completion of an HHE can prolong patient exposure to hazardous products and worsen regulatory outcomes.
Frequently asked questions
A cross-functional team, often including medical professionals, toxicologists, engineers, and regulatory specialists, typically conducts an HHE to ensure a comprehensive assessment.
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Annual Report (PMA)
Yearly report required for Class III PMA devices summarizing changes, complaints, and post-approval study status.
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Customer Notification Letter
Communication to users notifying them of a safety issue, corrective action, or important product information.
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Electronic Medical Device Reporting(eMDR)
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3 sourcesEvery citation below opens the original document. Each is graded against our source-tier hierarchy so you can see what rests on binding law versus commentary.
Tier 1Binding law and standards· 1Tier 2Regulator guidance and consensus· 2
Link health: 2 verified 1 unchecked· last checked 2026-06-20
FDA·1European Commission·1MDCG·1
- 121 CFR Part 7, RecallsTier 1 UncheckedFDAecfr.gov
- 2EUDAMED Public SiteTier 2 VerifiedEuropean Commissionec.europa.eu
- 3MDCG Vigilance GuidanceTier 2 VerifiedMDCGhealth.ec.europa.eu
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