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
  • T40.902A|

    Poisoning by unspecified psychodysleptics [hallucinogens], intentional self-harm, initial encounter

  • T40.902D|

    Poisoning by unspecified psychodysleptics [hallucinogens], intentional self-harm, subsequent encounter

  • T40.902S|

    Poisoning by unspecified psychodysleptics [hallucinogens], intentional self-harm, sequela

  • T40.903|

    Poisoning by unspecified psychodysleptics [hallucinogens], assault

  • T40.903A|

    Poisoning by unspecified psychodysleptics [hallucinogens], assault, initial encounter

  • T40.903D|

    Poisoning by unspecified psychodysleptics [hallucinogens], assault, subsequent encounter

  • T40.903S|

    Poisoning by unspecified psychodysleptics [hallucinogens], assault, sequela

  • T40.904|

    Poisoning by unspecified psychodysleptics [hallucinogens], undetermined

  • T40.904A|

    Poisoning by unspecified psychodysleptics [hallucinogens], undetermined, initial encounter

  • T40.904D|

    Poisoning by unspecified psychodysleptics [hallucinogens], undetermined, subsequent encounter

  • T40.904S|

    Poisoning by unspecified psychodysleptics [hallucinogens], undetermined, sequela

  • T40.905|

    Adverse effect of unspecified psychodysleptics [hallucinogens]

  • T40.905A|

    Adverse effect of unspecified psychodysleptics [hallucinogens], initial encounter

  • T40.905D|

    Adverse effect of unspecified psychodysleptics [hallucinogens], subsequent encounter

  • T40.905S|

    Adverse effect of unspecified psychodysleptics [hallucinogens], sequela

  • T40.906|

    Underdosing of unspecified psychodysleptics [hallucinogens]

  • T40.906A|

    Underdosing of unspecified psychodysleptics [hallucinogens], initial encounter

  • T40.906D|

    Underdosing of unspecified psychodysleptics [hallucinogens], subsequent encounter

  • T40.906S|

    Underdosing of unspecified psychodysleptics [hallucinogens], sequela

  • T40.99|

    Poisoning by, adverse effect of and underdosing of other psychodysleptics [hallucinogens]

  • T40.991|

    Poisoning by other psychodysleptics [hallucinogens], accidental (unintentional)

  • T40.991A|

    Poisoning by other psychodysleptics [hallucinogens], accidental (unintentional), initial encounter

  • T40.991D|

    Poisoning by other psychodysleptics [hallucinogens], accidental (unintentional), subsequent encounter

  • T40.991S|

    Poisoning by other psychodysleptics [hallucinogens], accidental (unintentional), sequela

  • T40.992|

    Poisoning by other psychodysleptics [hallucinogens], intentional self-harm

  • T40.992A|

    Poisoning by other psychodysleptics [hallucinogens], intentional self-harm, initial encounter

  • T40.992D|

    Poisoning by other psychodysleptics [hallucinogens], intentional self-harm, subsequent encounter

  • T40.992S|

    Poisoning by other psychodysleptics [hallucinogens], intentional self-harm, sequela

  • T40.993|

    Poisoning by other psychodysleptics [hallucinogens], assault

  • T40.993A|

    Poisoning by other psychodysleptics [hallucinogens], assault, initial encounter

  • T40.993D|

    Poisoning by other psychodysleptics [hallucinogens], assault, subsequent encounter

  • T40.993S|

    Poisoning by other psychodysleptics [hallucinogens], assault, sequela

  • T40.994|

    Poisoning by other psychodysleptics [hallucinogens], undetermined

  • T40.994A|

    Poisoning by other psychodysleptics [hallucinogens], undetermined, initial encounter

  • T40.994D|

    Poisoning by other psychodysleptics [hallucinogens], undetermined, subsequent encounter

  • T40.994S|

    Poisoning by other psychodysleptics [hallucinogens], undetermined, sequela

  • T40.995|

    Adverse effect of other psychodysleptics [hallucinogens]

  • T40.995A|

    Adverse effect of other psychodysleptics [hallucinogens], initial encounter

  • T40.995D|

    Adverse effect of other psychodysleptics [hallucinogens], subsequent encounter

  • T40.995S|

    Adverse effect of other psychodysleptics [hallucinogens], sequela

  • T40.996|

    Underdosing of other psychodysleptics [hallucinogens]

  • T40.996A|

    Underdosing of other psychodysleptics [hallucinogens], initial encounter

  • T40.996D|

    Underdosing of other psychodysleptics [hallucinogens], subsequent encounter

  • T40.996S|

    Underdosing of other psychodysleptics [hallucinogens], sequela

  • T41|

    Poisoning by, adverse effect of and underdosing of anesthetics and therapeutic gases

  • T41.0|

    Poisoning by, adverse effect of and underdosing of inhaled anesthetics

  • T41.0X|

    Poisoning by, adverse effect of and underdosing of inhaled anesthetics

  • T41.0X1|

    Poisoning by inhaled anesthetics, accidental (unintentional)

  • T41.0X1A|

    Poisoning by inhaled anesthetics, accidental (unintentional), initial encounter

  • T41.0X1D|

    Poisoning by inhaled anesthetics, accidental (unintentional), subsequent encounter

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