All ICD10 Codes
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.-)
All CodesBillable Only
Internal Codes
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  • T43.024A|

    Poisoning by tetracyclic antidepressants, undetermined, initial encounter

  • T43.024D|

    Poisoning by tetracyclic antidepressants, undetermined, subsequent encounter

  • T43.024S|

    Poisoning by tetracyclic antidepressants, undetermined, sequela

  • T43.025|

    Adverse effect of tetracyclic antidepressants

  • T43.025A|

    Adverse effect of tetracyclic antidepressants, initial encounter

  • T43.025D|

    Adverse effect of tetracyclic antidepressants, subsequent encounter

  • T43.025S|

    Adverse effect of tetracyclic antidepressants, sequela

  • T43.026|

    Underdosing of tetracyclic antidepressants

  • T43.026A|

    Underdosing of tetracyclic antidepressants, initial encounter

  • T43.026D|

    Underdosing of tetracyclic antidepressants, subsequent encounter

  • T43.026S|

    Underdosing of tetracyclic antidepressants, sequela

  • T43.1|

    Poisoning by, adverse effect of and underdosing of monoamine-oxidase-inhibitor antidepressants

  • T43.1X|

    Poisoning by, adverse effect of and underdosing of monoamine-oxidase-inhibitor antidepressants

  • T43.1X1|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, accidental (unintentional)

  • T43.1X1A|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, accidental (unintentional), initial encounter

  • T43.1X1D|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, accidental (unintentional), subsequent encounter

  • T43.1X1S|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, accidental (unintentional), sequela

  • T43.1X2|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, intentional self-harm

  • T43.1X2A|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, intentional self-harm, initial encounter

  • T43.1X2D|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, intentional self-harm, subsequent encounter

  • T43.1X2S|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, intentional self-harm, sequela

  • T43.1X3|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, assault

  • T43.1X3A|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, assault, initial encounter

  • T43.1X3D|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, assault, subsequent encounter

  • T43.1X3S|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, assault, sequela

  • T43.1X4|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, undetermined

  • T43.1X4A|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, undetermined, initial encounter

  • T43.1X4D|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, undetermined, subsequent encounter

  • T43.1X4S|

    Poisoning by monoamine-oxidase-inhibitor antidepressants, undetermined, sequela

  • T43.1X5|

    Adverse effect of monoamine-oxidase-inhibitor antidepressants

  • T43.1X5A|

    Adverse effect of monoamine-oxidase-inhibitor antidepressants, initial encounter

  • T43.1X5D|

    Adverse effect of monoamine-oxidase-inhibitor antidepressants, subsequent encounter

  • T43.1X5S|

    Adverse effect of monoamine-oxidase-inhibitor antidepressants, sequela

  • T43.1X6|

    Underdosing of monoamine-oxidase-inhibitor antidepressants

  • T43.1X6A|

    Underdosing of monoamine-oxidase-inhibitor antidepressants, initial encounter

  • T43.1X6D|

    Underdosing of monoamine-oxidase-inhibitor antidepressants, subsequent encounter

  • T43.1X6S|

    Underdosing of monoamine-oxidase-inhibitor antidepressants, sequela

  • T43.2|

    Poisoning by, adverse effect of and underdosing of other and unspecified antidepressants

  • T43.20|

    Poisoning by, adverse effect of and underdosing of unspecified antidepressants

  • T43.201|

    Poisoning by unspecified antidepressants, accidental (unintentional)

  • T43.201A|

    Poisoning by unspecified antidepressants, accidental (unintentional), initial encounter

  • T43.201D|

    Poisoning by unspecified antidepressants, accidental (unintentional), subsequent encounter

  • T43.201S|

    Poisoning by unspecified antidepressants, accidental (unintentional), sequela

  • T43.202|

    Poisoning by unspecified antidepressants, intentional self-harm

  • T43.202A|

    Poisoning by unspecified antidepressants, intentional self-harm, initial encounter

  • T43.202D|

    Poisoning by unspecified antidepressants, intentional self-harm, subsequent encounter

  • T43.202S|

    Poisoning by unspecified antidepressants, intentional self-harm, sequela

  • T43.203|

    Poisoning by unspecified antidepressants, assault

  • T43.203A|

    Poisoning by unspecified antidepressants, assault, initial encounter

  • T43.203D|

    Poisoning by unspecified antidepressants, assault, subsequent encounter

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