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
  • S03.42XS

    Sprain of jaw, left side, sequela

  • S03.43

    Sprain of jaw, bilateral

  • S03.43XA

    Sprain of jaw, bilateral, initial encounter

  • S03.43XD

    Sprain of jaw, bilateral, subsequent encounter

  • S03.43XS

    Sprain of jaw, bilateral, sequela

  • S03.8

    Sprain of joints and ligaments of other parts of head

  • S03.8XXA

    Sprain of joints and ligaments of other parts of head, initial encounter

  • S03.8XXD

    Sprain of joints and ligaments of other parts of head, subsequent encounter

  • S03.8XXS

    Sprain of joints and ligaments of other parts of head, sequela

  • S03.9

    Sprain of joints and ligaments of unspecified parts of head

  • S03.9XXA

    Sprain of joints and ligaments of unspecified parts of head, initial encounter

  • S03.9XXD

    Sprain of joints and ligaments of unspecified parts of head, subsequent encounter

  • S03.9XXS

    Sprain of joints and ligaments of unspecified parts of head, sequela

  • S04

    Injury of cranial nerve

  • S04.0

    Injury of optic nerve and pathways

  • S04.01

    Injury of optic nerve

  • S04.011

    Injury of optic nerve, right eye

  • S04.011A

    Injury of optic nerve, right eye, initial encounter

  • S04.011D

    Injury of optic nerve, right eye, subsequent encounter

  • S04.011S

    Injury of optic nerve, right eye, sequela

  • S04.012

    Injury of optic nerve, left eye

  • S04.012A

    Injury of optic nerve, left eye, initial encounter

  • S04.012D

    Injury of optic nerve, left eye, subsequent encounter

  • S04.012S

    Injury of optic nerve, left eye, sequela

  • S04.019

    Injury of optic nerve, unspecified eye

  • S04.019A

    Injury of optic nerve, unspecified eye, initial encounter

  • S04.019D

    Injury of optic nerve, unspecified eye, subsequent encounter

  • S04.019S

    Injury of optic nerve, unspecified eye, sequela

  • S04.02

    Injury of optic chiasm

  • S04.02XA

    Injury of optic chiasm, initial encounter

  • S04.02XD

    Injury of optic chiasm, subsequent encounter

  • S04.02XS

    Injury of optic chiasm, sequela

  • S04.03

    Injury of optic tract and pathways

  • S04.031

    Injury of optic tract and pathways, right side

  • S04.031A

    Injury of optic tract and pathways, right side, initial encounter

  • S04.031D

    Injury of optic tract and pathways, right side, subsequent encounter

  • S04.031S

    Injury of optic tract and pathways, right side, sequela

  • S04.032

    Injury of optic tract and pathways, left side

  • S04.032A

    Injury of optic tract and pathways, left side, initial encounter

  • S04.032D

    Injury of optic tract and pathways, left side, subsequent encounter

  • S04.032S

    Injury of optic tract and pathways, left side, sequela

  • S04.039

    Injury of optic tract and pathways, unspecified side

  • S04.039A

    Injury of optic tract and pathways, unspecified side, initial encounter

  • S04.039D

    Injury of optic tract and pathways, unspecified side, subsequent encounter

  • S04.039S

    Injury of optic tract and pathways, unspecified side, sequela

  • S04.04

    Injury of visual cortex

  • S04.041

    Injury of visual cortex, right side

  • S04.041A

    Injury of visual cortex, right side, initial encounter

  • S04.041D

    Injury of visual cortex, right side, subsequent encounter

  • S04.041S

    Injury of visual cortex, right side, sequela

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