Chapter 20

V00–Y99: External Causes of Morbidity

External Causes of Morbidity diagnostic classification updated for 2026.

Internal Codes
  • Y35.0

    Legal intervention involving firearm discharge

  • Y35.00

    Legal intervention involving unspecified firearm discharge

  • Y35.001

    Legal intervention involving unspecified firearm discharge, law enforcement official injured

  • Y35.001A

    Legal intervention involving unspecified firearm discharge, law enforcement official injured, initial encounter

  • Y35.001D

    Legal intervention involving unspecified firearm discharge, law enforcement official injured, subsequent encounter

  • Y35.001S

    Legal intervention involving unspecified firearm discharge, law enforcement official injured, sequela

  • Y35.002

    Legal intervention involving unspecified firearm discharge, bystander injured

  • Y35.002A

    Legal intervention involving unspecified firearm discharge, bystander injured, initial encounter

  • Y35.002D

    Legal intervention involving unspecified firearm discharge, bystander injured, subsequent encounter

  • Y35.002S

    Legal intervention involving unspecified firearm discharge, bystander injured, sequela

  • Y35.003

    Legal intervention involving unspecified firearm discharge, suspect injured

  • Y35.003A

    Legal intervention involving unspecified firearm discharge, suspect injured, initial encounter

  • Y35.003D

    Legal intervention involving unspecified firearm discharge, suspect injured, subsequent encounter

  • Y35.003S

    Legal intervention involving unspecified firearm discharge, suspect injured, sequela

  • Y35.009

    Legal intervention involving unspecified firearm discharge, unspecified person injured

  • Y35.009A

    Legal intervention involving unspecified firearm discharge, unspecified person injured, initial encounter

  • Y35.009D

    Legal intervention involving unspecified firearm discharge, unspecified person injured, subsequent encounter

  • Y35.009S

    Legal intervention involving unspecified firearm discharge, unspecified person injured, sequela

  • Y35.01

    Legal intervention involving injury by machine gun

  • Y35.011

    Legal intervention involving injury by machine gun, law enforcement official injured

  • Y35.011A

    Legal intervention involving injury by machine gun, law enforcement official injured, initial encounter

  • Y35.011D

    Legal intervention involving injury by machine gun, law enforcement official injured, subsequent encounter

  • Y35.011S

    Legal intervention involving injury by machine gun, law enforcement official injured, sequela

  • Y35.012

    Legal intervention involving injury by machine gun, bystander injured

  • Y35.012A

    Legal intervention involving injury by machine gun, bystander injured, initial encounter

  • Y35.012D

    Legal intervention involving injury by machine gun, bystander injured, subsequent encounter

  • Y35.012S

    Legal intervention involving injury by machine gun, bystander injured, sequela

  • Y35.013

    Legal intervention involving injury by machine gun, suspect injured

  • Y35.013A

    Legal intervention involving injury by machine gun, suspect injured, initial encounter

  • Y35.013D

    Legal intervention involving injury by machine gun, suspect injured, subsequent encounter

  • Y35.013S

    Legal intervention involving injury by machine gun, suspect injured, sequela

  • Y35.019

    Legal intervention involving injury by machine gun, unspecified person injured

  • Y35.019A

    Legal intervention involving injury by machine gun, unspecified person injured, initial encounter

  • Y35.019D

    Legal intervention involving injury by machine gun, unspecified person injured, subsequent encounter

  • Y35.019S

    Legal intervention involving injury by machine gun, unspecified person injured, sequela

  • Y35.02

    Legal intervention involving injury by handgun

  • Y35.021

    Legal intervention involving injury by handgun, law enforcement official injured

  • Y35.021A

    Legal intervention involving injury by handgun, law enforcement official injured, initial encounter

  • Y35.021D

    Legal intervention involving injury by handgun, law enforcement official injured, subsequent encounter

  • Y35.021S

    Legal intervention involving injury by handgun, law enforcement official injured, sequela

  • Y35.022

    Legal intervention involving injury by handgun, bystander injured

  • Y35.022A

    Legal intervention involving injury by handgun, bystander injured, initial encounter

  • Y35.022D

    Legal intervention involving injury by handgun, bystander injured, subsequent encounter

  • Y35.022S

    Legal intervention involving injury by handgun, bystander injured, sequela

  • Y35.023

    Legal intervention involving injury by handgun, suspect injured

  • Y35.023A

    Legal intervention involving injury by handgun, suspect injured, initial encounter

  • Y35.023D

    Legal intervention involving injury by handgun, suspect injured, subsequent encounter

  • Y35.023S

    Legal intervention involving injury by handgun, suspect injured, sequela

  • Y35.029

    Legal intervention involving injury by handgun, unspecified person injured

  • Y35.029A

    Legal intervention involving injury by handgun, unspecified person injured, initial encounter

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