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
  • T45.95XD|

    Adverse effect of unspecified primarily systemic and hematological agent, subsequent encounter

  • T45.95XS|

    Adverse effect of unspecified primarily systemic and hematological agent, sequela

  • T45.96|

    Underdosing of unspecified primarily systemic and hematological agent

  • T45.96XA|

    Underdosing of unspecified primarily systemic and hematological agent, initial encounter

  • T45.96XD|

    Underdosing of unspecified primarily systemic and hematological agent, subsequent encounter

  • T45.96XS|

    Underdosing of unspecified primarily systemic and hematological agent, sequela

  • T45.A|

    Poisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugs

  • T45.AX|

    Poisoning by, adverse effect of and underdosing of immune checkpoint inhibitors and immunostimulant drugs

  • T45.AX1|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional)

  • T45.AX1A|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional), initial encounter

  • T45.AX1D|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional), subsequent encounter

  • T45.AX1S|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, accidental (unintentional), sequela

  • T45.AX2|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm

  • T45.AX2A|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm, initial encounter

  • T45.AX2D|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm, subsequent encounter

  • T45.AX2S|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, intentional self-harm, sequela

  • T45.AX3|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, assault

  • T45.AX3A|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, assault, initial encounter

  • T45.AX3D|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, assault, subsequent encounter

  • T45.AX3S|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, assault, sequela

  • T45.AX4|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, undetermined

  • T45.AX4A|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, undetermined, initial encounter

  • T45.AX4D|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, undetermined, subsequent encounter

  • T45.AX4S|

    Poisoning by immune checkpoint inhibitors and immunostimulant drugs, undetermined, sequela

  • T45.AX5|

    Adverse effect of immune checkpoint inhibitors and immunostimulant drugs

  • T45.AX5A|

    Adverse effect of immune checkpoint inhibitors and immunostimulant drugs, initial encounter

  • T45.AX5D|

    Adverse effect of immune checkpoint inhibitors and immunostimulant drugs, subsequent encounter

  • T45.AX5S|

    Adverse effect of immune checkpoint inhibitors and immunostimulant drugs, sequela

  • T45.AX6|

    Underdosing of immune checkpoint inhibitors and immunostimulant drugs

  • T45.AX6A|

    Underdosing of immune checkpoint inhibitors and immunostimulant drugs, initial encounter

  • T45.AX6D|

    Underdosing of immune checkpoint inhibitors and immunostimulant drugs, subsequent encounter

  • T45.AX6S|

    Underdosing of immune checkpoint inhibitors and immunostimulant drugs, sequela

  • T46|

    Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system

  • T46.0|

    Poisoning by, adverse effect of and underdosing of cardiac-stimulant glycosides and drugs of similar action

  • T46.0X|

    Poisoning by, adverse effect of and underdosing of cardiac-stimulant glycosides and drugs of similar action

  • T46.0X1|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, accidental (unintentional)

  • T46.0X1A|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, accidental (unintentional), initial encounter

  • T46.0X1D|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, accidental (unintentional), subsequent encounter

  • T46.0X1S|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, accidental (unintentional), sequela

  • T46.0X2|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, intentional self-harm

  • T46.0X2A|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, intentional self-harm, initial encounter

  • T46.0X2D|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, intentional self-harm, subsequent encounter

  • T46.0X2S|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, intentional self-harm, sequela

  • T46.0X3|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, assault

  • T46.0X3A|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, assault, initial encounter

  • T46.0X3D|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, assault, subsequent encounter

  • T46.0X3S|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, assault, sequela

  • T46.0X4|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, undetermined

  • T46.0X4A|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, undetermined, initial encounter

  • T46.0X4D|

    Poisoning by cardiac-stimulant glycosides and drugs of similar action, undetermined, subsequent encounter

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