Chapter 20

V00–Y99: External Causes of Morbidity

External Causes of Morbidity diagnostic classification updated for 2026.

Internal Codes
  • Y36.331

    War operations involving flamethrower, civilian

  • Y36.331A

    War operations involving flamethrower, civilian, initial encounter

  • Y36.331D

    War operations involving flamethrower, civilian, subsequent encounter

  • Y36.331S

    War operations involving flamethrower, civilian, sequela

  • Y36.390

    War operations involving other fires, conflagrations and hot substances, military personnel

  • Y36.390A

    War operations involving other fires, conflagrations and hot substances, military personnel, initial encounter

  • Y36.390D

    War operations involving other fires, conflagrations and hot substances, military personnel, subsequent encounter

  • Y36.390S

    War operations involving other fires, conflagrations and hot substances, military personnel, sequela

  • Y36.391

    War operations involving other fires, conflagrations and hot substances, civilian

  • Y36.391A

    War operations involving other fires, conflagrations and hot substances, civilian, initial encounter

  • Y36.391D

    War operations involving other fires, conflagrations and hot substances, civilian, subsequent encounter

  • Y36.391S

    War operations involving other fires, conflagrations and hot substances, civilian, sequela

  • Y36.410

    War operations involving rubber bullets, military personnel

  • Y36.410A

    War operations involving rubber bullets, military personnel, initial encounter

  • Y36.410D

    War operations involving rubber bullets, military personnel, subsequent encounter

  • Y36.410S

    War operations involving rubber bullets, military personnel, sequela

  • Y36.411

    War operations involving rubber bullets, civilian

  • Y36.411A

    War operations involving rubber bullets, civilian, initial encounter

  • Y36.411D

    War operations involving rubber bullets, civilian, subsequent encounter

  • Y36.411S

    War operations involving rubber bullets, civilian, sequela

  • Y36.420

    War operations involving firearms pellets, military personnel

  • Y36.420A

    War operations involving firearms pellets, military personnel, initial encounter

  • Y36.420D

    War operations involving firearms pellets, military personnel, subsequent encounter

  • Y36.420S

    War operations involving firearms pellets, military personnel, sequela

  • Y36.421

    War operations involving firearms pellets, civilian

  • Y36.421A

    War operations involving firearms pellets, civilian, initial encounter

  • Y36.421D

    War operations involving firearms pellets, civilian, subsequent encounter

  • Y36.421S

    War operations involving firearms pellets, civilian, sequela

  • Y36.430

    War operations involving other firearms discharge, military personnel

  • Y36.430A

    War operations involving other firearms discharge, military personnel, initial encounter

  • Y36.430D

    War operations involving other firearms discharge, military personnel, subsequent encounter

  • Y36.430S

    War operations involving other firearms discharge, military personnel, sequela

  • Y36.431

    War operations involving other firearms discharge, civilian

  • Y36.431A

    War operations involving other firearms discharge, civilian, initial encounter

  • Y36.431D

    War operations involving other firearms discharge, civilian, subsequent encounter

  • Y36.431S

    War operations involving other firearms discharge, civilian, sequela

  • Y36.440

    War operations involving unarmed hand to hand combat, military personnel

  • Y36.440A

    War operations involving unarmed hand to hand combat, military personnel, initial encounter

  • Y36.440D

    War operations involving unarmed hand to hand combat, military personnel, subsequent encounter

  • Y36.440S

    War operations involving unarmed hand to hand combat, military personnel, sequela

  • Y36.441

    War operations involving unarmed hand to hand combat, civilian

  • Y36.441A

    War operations involving unarmed hand to hand combat, civilian, initial encounter

  • Y36.441D

    War operations involving unarmed hand to hand combat, civilian, subsequent encounter

  • Y36.441S

    War operations involving unarmed hand to hand combat, civilian, sequela

  • Y36.450

    War operations involving combat using blunt or piercing object, military personnel

  • Y36.450A

    War operations involving combat using blunt or piercing object, military personnel, initial encounter

  • Y36.450D

    War operations involving combat using blunt or piercing object, military personnel, subsequent encounter

  • Y36.450S

    War operations involving combat using blunt or piercing object, military personnel, sequela

  • Y36.451

    War operations involving combat using blunt or piercing object, civilian

  • Y36.451A

    War operations involving combat using blunt or piercing object, civilian, initial encounter

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