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
  • T49.4X2D|

    Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, intentional self-harm, subsequent encounter

  • T49.4X2S|

    Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, intentional self-harm, sequela

  • T49.4X3|

    Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, assault

  • T49.4X3A|

    Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, assault, initial encounter

  • T49.4X3D|

    Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, assault, subsequent encounter

  • T49.4X3S|

    Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, assault, sequela

  • T49.4X4|

    Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, undetermined

  • T49.4X4A|

    Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, undetermined, initial encounter

  • T49.4X4D|

    Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, undetermined, subsequent encounter

  • T49.4X4S|

    Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, undetermined, sequela

  • T49.4X5|

    Adverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations

  • T49.4X5A|

    Adverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, initial encounter

  • T49.4X5D|

    Adverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, subsequent encounter

  • T49.4X5S|

    Adverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, sequela

  • T49.4X6|

    Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations

  • T49.4X6A|

    Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations, initial encounter

  • T49.4X6D|

    Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations, subsequent encounter

  • T49.4X6S|

    Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations, sequela

  • T49.5|

    Poisoning by, adverse effect of and underdosing of ophthalmological drugs and preparations

  • T49.5X|

    Poisoning by, adverse effect of and underdosing of ophthalmological drugs and preparations

  • T49.5X1|

    Poisoning by ophthalmological drugs and preparations, accidental (unintentional)

  • T49.5X1A|

    Poisoning by ophthalmological drugs and preparations, accidental (unintentional), initial encounter

  • T49.5X1D|

    Poisoning by ophthalmological drugs and preparations, accidental (unintentional), subsequent encounter

  • T49.5X1S|

    Poisoning by ophthalmological drugs and preparations, accidental (unintentional), sequela

  • T49.5X2|

    Poisoning by ophthalmological drugs and preparations, intentional self-harm

  • T49.5X2A|

    Poisoning by ophthalmological drugs and preparations, intentional self-harm, initial encounter

  • T49.5X2D|

    Poisoning by ophthalmological drugs and preparations, intentional self-harm, subsequent encounter

  • T49.5X2S|

    Poisoning by ophthalmological drugs and preparations, intentional self-harm, sequela

  • T49.5X3|

    Poisoning by ophthalmological drugs and preparations, assault

  • T49.5X3A|

    Poisoning by ophthalmological drugs and preparations, assault, initial encounter

  • T49.5X3D|

    Poisoning by ophthalmological drugs and preparations, assault, subsequent encounter

  • T49.5X3S|

    Poisoning by ophthalmological drugs and preparations, assault, sequela

  • T49.5X4|

    Poisoning by ophthalmological drugs and preparations, undetermined

  • T49.5X4A|

    Poisoning by ophthalmological drugs and preparations, undetermined, initial encounter

  • T49.5X4D|

    Poisoning by ophthalmological drugs and preparations, undetermined, subsequent encounter

  • T49.5X4S|

    Poisoning by ophthalmological drugs and preparations, undetermined, sequela

  • T49.5X5|

    Adverse effect of ophthalmological drugs and preparations

  • T49.5X5A|

    Adverse effect of ophthalmological drugs and preparations, initial encounter

  • T49.5X5D|

    Adverse effect of ophthalmological drugs and preparations, subsequent encounter

  • T49.5X5S|

    Adverse effect of ophthalmological drugs and preparations, sequela

  • T49.5X6|

    Underdosing of ophthalmological drugs and preparations

  • T49.5X6A|

    Underdosing of ophthalmological drugs and preparations, initial encounter

  • T49.5X6D|

    Underdosing of ophthalmological drugs and preparations, subsequent encounter

  • T49.5X6S|

    Underdosing of ophthalmological drugs and preparations, sequela

  • T49.6|

    Poisoning by, adverse effect of and underdosing of otorhinolaryngological drugs and preparations

  • T49.6X|

    Poisoning by, adverse effect of and underdosing of otorhinolaryngological drugs and preparations

  • T49.6X1|

    Poisoning by otorhinolaryngological drugs and preparations, accidental (unintentional)

  • T49.6X1A|

    Poisoning by otorhinolaryngological drugs and preparations, accidental (unintentional), initial encounter

  • T49.6X1D|

    Poisoning by otorhinolaryngological drugs and preparations, accidental (unintentional), subsequent encounter

  • T49.6X1S|

    Poisoning by otorhinolaryngological drugs and preparations, accidental (unintentional), sequela

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