Chapter 19

S00–T88: Injury, Poisoning and Certain Other Consequences of External Causes

Injury, Poisoning and Certain Other Consequences of External Causes diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
Use Additional Code
  • code to identify any retained foreign body, if applicable (Z18.-)
Internal Codes
  • T50.A24S|

    Poisoning by mixed bacterial vaccines without a pertussis component, undetermined, sequela

  • T50.A25|

    Adverse effect of mixed bacterial vaccines without a pertussis component

  • T50.A25A|

    Adverse effect of mixed bacterial vaccines without a pertussis component, initial encounter

  • T50.A25D|

    Adverse effect of mixed bacterial vaccines without a pertussis component, subsequent encounter

  • T50.A25S|

    Adverse effect of mixed bacterial vaccines without a pertussis component, sequela

  • T50.A26|

    Underdosing of mixed bacterial vaccines without a pertussis component

  • T50.A26A|

    Underdosing of mixed bacterial vaccines without a pertussis component, initial encounter

  • T50.A26D|

    Underdosing of mixed bacterial vaccines without a pertussis component, subsequent encounter

  • T50.A26S|

    Underdosing of mixed bacterial vaccines without a pertussis component, sequela

  • T50.A9|

    Poisoning by, adverse effect of and underdosing of other bacterial vaccines

  • T50.A91|

    Poisoning by other bacterial vaccines, accidental (unintentional)

  • T50.A91A|

    Poisoning by other bacterial vaccines, accidental (unintentional), initial encounter

  • T50.A91D|

    Poisoning by other bacterial vaccines, accidental (unintentional), subsequent encounter

  • T50.A91S|

    Poisoning by other bacterial vaccines, accidental (unintentional), sequela

  • T50.A92|

    Poisoning by other bacterial vaccines, intentional self-harm

  • T50.A92A|

    Poisoning by other bacterial vaccines, intentional self-harm, initial encounter

  • T50.A92D|

    Poisoning by other bacterial vaccines, intentional self-harm, subsequent encounter

  • T50.A92S|

    Poisoning by other bacterial vaccines, intentional self-harm, sequela

  • T50.A93|

    Poisoning by other bacterial vaccines, assault

  • T50.A93A|

    Poisoning by other bacterial vaccines, assault, initial encounter

  • T50.A93D|

    Poisoning by other bacterial vaccines, assault, subsequent encounter

  • T50.A93S|

    Poisoning by other bacterial vaccines, assault, sequela

  • T50.A94|

    Poisoning by other bacterial vaccines, undetermined

  • T50.A94A|

    Poisoning by other bacterial vaccines, undetermined, initial encounter

  • T50.A94D|

    Poisoning by other bacterial vaccines, undetermined, subsequent encounter

  • T50.A94S|

    Poisoning by other bacterial vaccines, undetermined, sequela

  • T50.A95|

    Adverse effect of other bacterial vaccines

  • T50.A95A|

    Adverse effect of other bacterial vaccines, initial encounter

  • T50.A95D|

    Adverse effect of other bacterial vaccines, subsequent encounter

  • T50.A95S|

    Adverse effect of other bacterial vaccines, sequela

  • T50.A96|

    Underdosing of other bacterial vaccines

  • T50.A96A|

    Underdosing of other bacterial vaccines, initial encounter

  • T50.A96D|

    Underdosing of other bacterial vaccines, subsequent encounter

  • T50.A96S|

    Underdosing of other bacterial vaccines, sequela

  • T50.B|

    Poisoning by, adverse effect of and underdosing of viral vaccines

  • T50.B1|

    Poisoning by, adverse effect of and underdosing of smallpox vaccines

  • T50.B11|

    Poisoning by smallpox vaccines, accidental (unintentional)

  • T50.B11A|

    Poisoning by smallpox vaccines, accidental (unintentional), initial encounter

  • T50.B11D|

    Poisoning by smallpox vaccines, accidental (unintentional), subsequent encounter

  • T50.B11S|

    Poisoning by smallpox vaccines, accidental (unintentional), sequela

  • T50.B12|

    Poisoning by smallpox vaccines, intentional self-harm

  • T50.B12A|

    Poisoning by smallpox vaccines, intentional self-harm, initial encounter

  • T50.B12D|

    Poisoning by smallpox vaccines, intentional self-harm, subsequent encounter

  • T50.B12S|

    Poisoning by smallpox vaccines, intentional self-harm, sequela

  • T50.B13|

    Poisoning by smallpox vaccines, assault

  • T50.B13A|

    Poisoning by smallpox vaccines, assault, initial encounter

  • T50.B13D|

    Poisoning by smallpox vaccines, assault, subsequent encounter

  • T50.B13S|

    Poisoning by smallpox vaccines, assault, sequela

  • T50.B14|

    Poisoning by smallpox vaccines, undetermined

  • T50.B14A|

    Poisoning by smallpox vaccines, undetermined, initial encounter

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