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Guide to Classifying Manner of Death

Apr 14, 2025

Manner of Death Classification Guide

Introduction

  • Purpose: This guide is intended to provide consistency in classifying manners of death on death certificates. It is not a legally binding standard but aids medical examiners, coroners, and certifiers in making informed decisions.
  • Manner of Death: Must be reported and is an American addition to the death certificate since 1910.
  • Primary Categories:
    • Natural
    • Accident
    • Suicide
    • Homicide
    • Undetermined

General Principles

  • Exceptions to Rules: Rules can be modified in exceptional cases but should generally be followed.
  • Basic Rules:
    • Natural: Death solely from disease or aging.
    • Accident: Unintentional external causes (e.g., poison, injury).
    • Suicide: Intentional self-inflicted harm.
    • Homicide: Death due to a volitional act by another, intent to harm not required.
    • Undetermined: When multiple possible manners exist.
  • Interpretation Avoidance: Certifiers should refrain from interpreting legal statutes in their classification process.
  • Time Interval: The time between injury/event and death generally irrelevant if related to the cause.
  • Objectivity: Certification should avoid bias and be based on established criteria.

Specific Guidelines

  • Suicide: Requires evidence beyond a reasonable doubt.
  • Natural Events in Hostile Environments: Often prioritized as non-natural if the environment significantly contributes to death.
  • Chronic Substance Abuse: Typically classified as natural due to disease from substance dependency.
  • Acute Toxic Effects: Accidents unless intent to harm is evident.
  • Therapy-Related Deaths: Generally classified as natural unless due to clear medical error.
  • Risk-Taking Behavior: Often challenging; requires careful assessment.
  • Judicial Executions: Classified as homicide.

Special Cases

  • SIDS: Varies from natural to undetermined based on investigation details.
  • Multiple or Sequential SIDS: Often classified as undetermined due to low natural occurrence probability.
  • Infant Deaths by Environment: Distinct classification if due to negligence versus accidental exposure.
  • Complications of Therapy: Requires thorough detail in cause-of-death statements to reflect treatment and underlying conditions.

Review Process

  • Feedback and Revisions: Guide revised after feedback from NAME members. Comments addressed included:
    • Ricochet Deaths: Judgment calls; can be accident or homicide based on intent.
    • Anaphylaxis: Typically classified as accidents.
    • SIDS Recommendations: Manner often classified as undetermined.
    • Unclassified Option: Suggested but generally not available; undetermined used instead.

Conclusion

  • Objective: Aim for consistency and avoid reliance on personal philosophy or external pressures.
  • Future Updates: Anticipated supplements or revisions to the guide.

Note: Subsequent sections of the guide provide detailed scenarios and recommendations for handling specific cases, requiring careful judgment and adherence to outlined principles.