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
  • T58.8X4D|

    Toxic effect of carbon monoxide from other source, undetermined, subsequent encounter

  • T58.8X4S|

    Toxic effect of carbon monoxide from other source, undetermined, sequela

  • T58.9|

    Toxic effect of carbon monoxide from unspecified source

  • T58.91|

    Toxic effect of carbon monoxide from unspecified source, accidental (unintentional)

  • T58.91XA|

    Toxic effect of carbon monoxide from unspecified source, accidental (unintentional), initial encounter

  • T58.91XD|

    Toxic effect of carbon monoxide from unspecified source, accidental (unintentional), subsequent encounter

  • T58.91XS|

    Toxic effect of carbon monoxide from unspecified source, accidental (unintentional), sequela

  • T58.92|

    Toxic effect of carbon monoxide from unspecified source, intentional self-harm

  • T58.92XA|

    Toxic effect of carbon monoxide from unspecified source, intentional self-harm, initial encounter

  • T58.92XD|

    Toxic effect of carbon monoxide from unspecified source, intentional self-harm, subsequent encounter

  • T58.92XS|

    Toxic effect of carbon monoxide from unspecified source, intentional self-harm, sequela

  • T58.93|

    Toxic effect of carbon monoxide from unspecified source, assault

  • T58.93XA|

    Toxic effect of carbon monoxide from unspecified source, assault, initial encounter

  • T58.93XD|

    Toxic effect of carbon monoxide from unspecified source, assault, subsequent encounter

  • T58.93XS|

    Toxic effect of carbon monoxide from unspecified source, assault, sequela

  • T58.94|

    Toxic effect of carbon monoxide from unspecified source, undetermined

  • T58.94XA|

    Toxic effect of carbon monoxide from unspecified source, undetermined, initial encounter

  • T58.94XD|

    Toxic effect of carbon monoxide from unspecified source, undetermined, subsequent encounter

  • T58.94XS|

    Toxic effect of carbon monoxide from unspecified source, undetermined, sequela

  • T59|

    Toxic effect of other gases, fumes and vapors

  • T59.0|

    Toxic effect of nitrogen oxides

  • T59.0X|

    Toxic effect of nitrogen oxides

  • T59.0X1|

    Toxic effect of nitrogen oxides, accidental (unintentional)

  • T59.0X1A|

    Toxic effect of nitrogen oxides, accidental (unintentional), initial encounter

  • T59.0X1D|

    Toxic effect of nitrogen oxides, accidental (unintentional), subsequent encounter

  • T59.0X1S|

    Toxic effect of nitrogen oxides, accidental (unintentional), sequela

  • T59.0X2|

    Toxic effect of nitrogen oxides, intentional self-harm

  • T59.0X2A|

    Toxic effect of nitrogen oxides, intentional self-harm, initial encounter

  • T59.0X2D|

    Toxic effect of nitrogen oxides, intentional self-harm, subsequent encounter

  • T59.0X2S|

    Toxic effect of nitrogen oxides, intentional self-harm, sequela

  • T59.0X3|

    Toxic effect of nitrogen oxides, assault

  • T59.0X3A|

    Toxic effect of nitrogen oxides, assault, initial encounter

  • T59.0X3D|

    Toxic effect of nitrogen oxides, assault, subsequent encounter

  • T59.0X3S|

    Toxic effect of nitrogen oxides, assault, sequela

  • T59.0X4|

    Toxic effect of nitrogen oxides, undetermined

  • T59.0X4A|

    Toxic effect of nitrogen oxides, undetermined, initial encounter

  • T59.0X4D|

    Toxic effect of nitrogen oxides, undetermined, subsequent encounter

  • T59.0X4S|

    Toxic effect of nitrogen oxides, undetermined, sequela

  • T59.1|

    Toxic effect of sulfur dioxide

  • T59.1X|

    Toxic effect of sulfur dioxide

  • T59.1X1|

    Toxic effect of sulfur dioxide, accidental (unintentional)

  • T59.1X1A|

    Toxic effect of sulfur dioxide, accidental (unintentional), initial encounter

  • T59.1X1D|

    Toxic effect of sulfur dioxide, accidental (unintentional), subsequent encounter

  • T59.1X1S|

    Toxic effect of sulfur dioxide, accidental (unintentional), sequela

  • T59.1X2|

    Toxic effect of sulfur dioxide, intentional self-harm

  • T59.1X2A|

    Toxic effect of sulfur dioxide, intentional self-harm, initial encounter

  • T59.1X2D|

    Toxic effect of sulfur dioxide, intentional self-harm, subsequent encounter

  • T59.1X2S|

    Toxic effect of sulfur dioxide, intentional self-harm, sequela

  • T59.1X3|

    Toxic effect of sulfur dioxide, assault

  • T59.1X3A|

    Toxic effect of sulfur dioxide, assault, initial encounter

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