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
  • T70.20|

    Unspecified effects of high altitude

  • T70.20XA|

    Unspecified effects of high altitude, initial encounter

  • T70.20XD|

    Unspecified effects of high altitude, subsequent encounter

  • T70.20XS|

    Unspecified effects of high altitude, sequela

  • T70.29|

    Other effects of high altitude

  • T70.29XA|

    Other effects of high altitude, initial encounter

  • T70.29XD|

    Other effects of high altitude, subsequent encounter

  • T70.29XS|

    Other effects of high altitude, sequela

  • T70.3|

    Caisson disease [decompression sickness]

  • T70.3XXA|

    Caisson disease [decompression sickness], initial encounter

  • T70.3XXD|

    Caisson disease [decompression sickness], subsequent encounter

  • T70.3XXS|

    Caisson disease [decompression sickness], sequela

  • T70.4|

    Effects of high-pressure fluids

  • T70.4XXA|

    Effects of high-pressure fluids, initial encounter

  • T70.4XXD|

    Effects of high-pressure fluids, subsequent encounter

  • T70.4XXS|

    Effects of high-pressure fluids, sequela

  • T70.8|

    Other effects of air pressure and water pressure

  • T70.8XXA|

    Other effects of air pressure and water pressure, initial encounter

  • T70.8XXD|

    Other effects of air pressure and water pressure, subsequent encounter

  • T70.8XXS|

    Other effects of air pressure and water pressure, sequela

  • T70.9|

    Effect of air pressure and water pressure, unspecified

  • T70.9XXA|

    Effect of air pressure and water pressure, unspecified, initial encounter

  • T70.9XXD|

    Effect of air pressure and water pressure, unspecified, subsequent encounter

  • T70.9XXS|

    Effect of air pressure and water pressure, unspecified, sequela

  • T71|

    Asphyxiation

  • T71.1|

    Asphyxiation due to mechanical threat to breathing

  • T71.11|

    Asphyxiation due to smothering under pillow

  • T71.111|

    Asphyxiation due to smothering under pillow, accidental

  • T71.111A|

    Asphyxiation due to smothering under pillow, accidental, initial encounter

  • T71.111D|

    Asphyxiation due to smothering under pillow, accidental, subsequent encounter

  • T71.111S|

    Asphyxiation due to smothering under pillow, accidental, sequela

  • T71.112|

    Asphyxiation due to smothering under pillow, intentional self-harm

  • T71.112A|

    Asphyxiation due to smothering under pillow, intentional self-harm, initial encounter

  • T71.112D|

    Asphyxiation due to smothering under pillow, intentional self-harm, subsequent encounter

  • T71.112S|

    Asphyxiation due to smothering under pillow, intentional self-harm, sequela

  • T71.113|

    Asphyxiation due to smothering under pillow, assault

  • T71.113A|

    Asphyxiation due to smothering under pillow, assault, initial encounter

  • T71.113D|

    Asphyxiation due to smothering under pillow, assault, subsequent encounter

  • T71.113S|

    Asphyxiation due to smothering under pillow, assault, sequela

  • T71.114|

    Asphyxiation due to smothering under pillow, undetermined

  • T71.114A|

    Asphyxiation due to smothering under pillow, undetermined, initial encounter

  • T71.114D|

    Asphyxiation due to smothering under pillow, undetermined, subsequent encounter

  • T71.114S|

    Asphyxiation due to smothering under pillow, undetermined, sequela

  • T71.12|

    Asphyxiation due to plastic bag

  • T71.121|

    Asphyxiation due to plastic bag, accidental

  • T71.121A|

    Asphyxiation due to plastic bag, accidental, initial encounter

  • T71.121D|

    Asphyxiation due to plastic bag, accidental, subsequent encounter

  • T71.121S|

    Asphyxiation due to plastic bag, accidental, sequela

  • T71.122|

    Asphyxiation due to plastic bag, intentional self-harm

  • T71.122A|

    Asphyxiation due to plastic bag, intentional self-harm, initial encounter

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