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
  • T45.2X|

    Poisoning by, adverse effect of and underdosing of vitamins

  • T45.2X1|

    Poisoning by vitamins, accidental (unintentional)

  • T45.2X1A|

    Poisoning by vitamins, accidental (unintentional), initial encounter

  • T45.2X1D|

    Poisoning by vitamins, accidental (unintentional), subsequent encounter

  • T45.2X1S|

    Poisoning by vitamins, accidental (unintentional), sequela

  • T45.2X2|

    Poisoning by vitamins, intentional self-harm

  • T45.2X2A|

    Poisoning by vitamins, intentional self-harm, initial encounter

  • T45.2X2D|

    Poisoning by vitamins, intentional self-harm, subsequent encounter

  • T45.2X2S|

    Poisoning by vitamins, intentional self-harm, sequela

  • T45.2X3|

    Poisoning by vitamins, assault

  • T45.2X3A|

    Poisoning by vitamins, assault, initial encounter

  • T45.2X3D|

    Poisoning by vitamins, assault, subsequent encounter

  • T45.2X3S|

    Poisoning by vitamins, assault, sequela

  • T45.2X4|

    Poisoning by vitamins, undetermined

  • T45.2X4A|

    Poisoning by vitamins, undetermined, initial encounter

  • T45.2X4D|

    Poisoning by vitamins, undetermined, subsequent encounter

  • T45.2X4S|

    Poisoning by vitamins, undetermined, sequela

  • T45.2X5|

    Adverse effect of vitamins

  • T45.2X5A|

    Adverse effect of vitamins, initial encounter

  • T45.2X5D|

    Adverse effect of vitamins, subsequent encounter

  • T45.2X5S|

    Adverse effect of vitamins, sequela

  • T45.2X6|

    Underdosing of vitamins

  • T45.2X6A|

    Underdosing of vitamins, initial encounter

  • T45.2X6D|

    Underdosing of vitamins, subsequent encounter

  • T45.2X6S|

    Underdosing of vitamins, sequela

  • T45.3|

    Poisoning by, adverse effect of and underdosing of enzymes

  • T45.3X|

    Poisoning by, adverse effect of and underdosing of enzymes

  • T45.3X1|

    Poisoning by enzymes, accidental (unintentional)

  • T45.3X1A|

    Poisoning by enzymes, accidental (unintentional), initial encounter

  • T45.3X1D|

    Poisoning by enzymes, accidental (unintentional), subsequent encounter

  • T45.3X1S|

    Poisoning by enzymes, accidental (unintentional), sequela

  • T45.3X2|

    Poisoning by enzymes, intentional self-harm

  • T45.3X2A|

    Poisoning by enzymes, intentional self-harm, initial encounter

  • T45.3X2D|

    Poisoning by enzymes, intentional self-harm, subsequent encounter

  • T45.3X2S|

    Poisoning by enzymes, intentional self-harm, sequela

  • T45.3X3|

    Poisoning by enzymes, assault

  • T45.3X3A|

    Poisoning by enzymes, assault, initial encounter

  • T45.3X3D|

    Poisoning by enzymes, assault, subsequent encounter

  • T45.3X3S|

    Poisoning by enzymes, assault, sequela

  • T45.3X4|

    Poisoning by enzymes, undetermined

  • T45.3X4A|

    Poisoning by enzymes, undetermined, initial encounter

  • T45.3X4D|

    Poisoning by enzymes, undetermined, subsequent encounter

  • T45.3X4S|

    Poisoning by enzymes, undetermined, sequela

  • T45.3X5|

    Adverse effect of enzymes

  • T45.3X5A|

    Adverse effect of enzymes, initial encounter

  • T45.3X5D|

    Adverse effect of enzymes, subsequent encounter

  • T45.3X5S|

    Adverse effect of enzymes, sequela

  • T45.3X6|

    Underdosing of enzymes

  • T45.3X6A|

    Underdosing of enzymes, initial encounter

  • T45.3X6D|

    Underdosing of enzymes, subsequent encounter

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