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
  • S24.141

    Brown-Séquard syndrome at T1 level of thoracic spinal cord

  • S24.141A

    Brown-Sequard syndrome at T1 level of thoracic spinal cord, initial encounter

  • S24.141D

    Brown-Sequard syndrome at T1 level of thoracic spinal cord, subsequent encounter

  • S24.141S

    Brown-Sequard syndrome at T1 level of thoracic spinal cord, sequela

  • S24.142

    Brown-Séquard syndrome at T2-T6 level of thoracic spinal cord

  • S24.142A

    Brown-Sequard syndrome at T2-T6 level of thoracic spinal cord, initial encounter

  • S24.142D

    Brown-Sequard syndrome at T2-T6 level of thoracic spinal cord, subsequent encounter

  • S24.142S

    Brown-Sequard syndrome at T2-T6 level of thoracic spinal cord, sequela

  • S24.143

    Brown-Séquard syndrome at T7-T10 level of thoracic spinal cord

  • S24.143A

    Brown-Sequard syndrome at T7-T10 level of thoracic spinal cord, initial encounter

  • S24.143D

    Brown-Sequard syndrome at T7-T10 level of thoracic spinal cord, subsequent encounter

  • S24.143S

    Brown-Sequard syndrome at T7-T10 level of thoracic spinal cord, sequela

  • S24.144

    Brown-Séquard syndrome at T11-T12 level of thoracic spinal cord

  • S24.144A

    Brown-Sequard syndrome at T11-T12 level of thoracic spinal cord, initial encounter

  • S24.144D

    Brown-Sequard syndrome at T11-T12 level of thoracic spinal cord, subsequent encounter

  • S24.144S

    Brown-Sequard syndrome at T11-T12 level of thoracic spinal cord, sequela

  • S24.149

    Brown-Séquard syndrome at unspecified level of thoracic spinal cord

  • S24.149A

    Brown-Sequard syndrome at unspecified level of thoracic spinal cord, initial encounter

  • S24.149D

    Brown-Sequard syndrome at unspecified level of thoracic spinal cord, subsequent encounter

  • S24.149S

    Brown-Sequard syndrome at unspecified level of thoracic spinal cord, sequela

  • S24.15

    Other incomplete lesions of thoracic spinal cord

  • S24.151

    Other incomplete lesion at T1 level of thoracic spinal cord

  • S24.151A

    Other incomplete lesion at T1 level of thoracic spinal cord, initial encounter

  • S24.151D

    Other incomplete lesion at T1 level of thoracic spinal cord, subsequent encounter

  • S24.151S

    Other incomplete lesion at T1 level of thoracic spinal cord, sequela

  • S24.152

    Other incomplete lesion at T2-T6 level of thoracic spinal cord

  • S24.152A

    Other incomplete lesion at T2-T6 level of thoracic spinal cord, initial encounter

  • S24.152D

    Other incomplete lesion at T2-T6 level of thoracic spinal cord, subsequent encounter

  • S24.152S

    Other incomplete lesion at T2-T6 level of thoracic spinal cord, sequela

  • S24.153

    Other incomplete lesion at T7-T10 level of thoracic spinal cord

  • S24.153A

    Other incomplete lesion at T7-T10 level of thoracic spinal cord, initial encounter

  • S24.153D

    Other incomplete lesion at T7-T10 level of thoracic spinal cord, subsequent encounter

  • S24.153S

    Other incomplete lesion at T7-T10 level of thoracic spinal cord, sequela

  • S24.154

    Other incomplete lesion at T11-T12 level of thoracic spinal cord

  • S24.154A

    Other incomplete lesion at T11-T12 level of thoracic spinal cord, initial encounter

  • S24.154D

    Other incomplete lesion at T11-T12 level of thoracic spinal cord, subsequent encounter

  • S24.154S

    Other incomplete lesion at T11-T12 level of thoracic spinal cord, sequela

  • S24.159

    Other incomplete lesion at unspecified level of thoracic spinal cord

  • S24.159A

    Other incomplete lesion at unspecified level of thoracic spinal cord, initial encounter

  • S24.159D

    Other incomplete lesion at unspecified level of thoracic spinal cord, subsequent encounter

  • S24.159S

    Other incomplete lesion at unspecified level of thoracic spinal cord, sequela

  • S24.2

    Injury of nerve root of thoracic spine

  • S24.2XXA

    Injury of nerve root of thoracic spine, initial encounter

  • S24.2XXD

    Injury of nerve root of thoracic spine, subsequent encounter

  • S24.2XXS

    Injury of nerve root of thoracic spine, sequela

  • S24.3

    Injury of peripheral nerves of thorax

  • S24.3XXA

    Injury of peripheral nerves of thorax, initial encounter

  • S24.3XXD

    Injury of peripheral nerves of thorax, subsequent encounter

  • S24.3XXS

    Injury of peripheral nerves of thorax, sequela

  • S24.4

    Injury of thoracic sympathetic nervous system

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