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
  • S12.112S

    Nondisplaced Type II dens fracture, sequela

  • S12.120

    Other displaced dens fracture

  • S12.120A

    Other displaced dens fracture, initial encounter for closed fracture

  • S12.120B

    Other displaced dens fracture, initial encounter for open fracture

  • S12.120D

    Other displaced dens fracture, subsequent encounter for fracture with routine healing

  • S12.120G

    Other displaced dens fracture, subsequent encounter for fracture with delayed healing

  • S12.120K

    Other displaced dens fracture, subsequent encounter for fracture with nonunion

  • S12.120S

    Other displaced dens fracture, sequela

  • S12.121

    Other nondisplaced dens fracture

  • S12.121A

    Other nondisplaced dens fracture, initial encounter for closed fracture

  • S12.121B

    Other nondisplaced dens fracture, initial encounter for open fracture

  • S12.121D

    Other nondisplaced dens fracture, subsequent encounter for fracture with routine healing

  • S12.121G

    Other nondisplaced dens fracture, subsequent encounter for fracture with delayed healing

  • S12.121K

    Other nondisplaced dens fracture, subsequent encounter for fracture with nonunion

  • S12.121S

    Other nondisplaced dens fracture, sequela

  • S12.130

    Unspecified traumatic displaced spondylolisthesis of second cervical vertebra

  • S12.130A

    Unspecified traumatic displaced spondylolisthesis of second cervical vertebra, initial encounter for closed fracture

  • S12.130B

    Unspecified traumatic displaced spondylolisthesis of second cervical vertebra, initial encounter for open fracture

  • S12.130D

    Unspecified traumatic displaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with routine healing

  • S12.130G

    Unspecified traumatic displaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with delayed healing

  • S12.130K

    Unspecified traumatic displaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with nonunion

  • S12.130S

    Unspecified traumatic displaced spondylolisthesis of second cervical vertebra, sequela

  • S12.131

    Unspecified traumatic nondisplaced spondylolisthesis of second cervical vertebra

  • S12.131A

    Unspecified traumatic nondisplaced spondylolisthesis of second cervical vertebra, initial encounter for closed fracture

  • S12.131B

    Unspecified traumatic nondisplaced spondylolisthesis of second cervical vertebra, initial encounter for open fracture

  • S12.131D

    Unspecified traumatic nondisplaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with routine healing

  • S12.131G

    Unspecified traumatic nondisplaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with delayed healing

  • S12.131K

    Unspecified traumatic nondisplaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with nonunion

  • S12.131S

    Unspecified traumatic nondisplaced spondylolisthesis of second cervical vertebra, sequela

  • S12.14

    Type III traumatic spondylolisthesis of second cervical vertebra

  • S12.14XA

    Type III traumatic spondylolisthesis of second cervical vertebra, initial encounter for closed fracture

  • S12.14XB

    Type III traumatic spondylolisthesis of second cervical vertebra, initial encounter for open fracture

  • S12.14XD

    Type III traumatic spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with routine healing

  • S12.14XG

    Type III traumatic spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with delayed healing

  • S12.14XK

    Type III traumatic spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with nonunion

  • S12.14XS

    Type III traumatic spondylolisthesis of second cervical vertebra, sequela

  • S12.150

    Other traumatic displaced spondylolisthesis of second cervical vertebra

  • S12.150A

    Other traumatic displaced spondylolisthesis of second cervical vertebra, initial encounter for closed fracture

  • S12.150B

    Other traumatic displaced spondylolisthesis of second cervical vertebra, initial encounter for open fracture

  • S12.150D

    Other traumatic displaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with routine healing

  • S12.150G

    Other traumatic displaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with delayed healing

  • S12.150K

    Other traumatic displaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with nonunion

  • S12.150S

    Other traumatic displaced spondylolisthesis of second cervical vertebra, sequela

  • S12.151

    Other traumatic nondisplaced spondylolisthesis of second cervical vertebra

  • S12.151A

    Other traumatic nondisplaced spondylolisthesis of second cervical vertebra, initial encounter for closed fracture

  • S12.151B

    Other traumatic nondisplaced spondylolisthesis of second cervical vertebra, initial encounter for open fracture

  • S12.151D

    Other traumatic nondisplaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with routine healing

  • S12.151G

    Other traumatic nondisplaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with delayed healing

  • S12.151K

    Other traumatic nondisplaced spondylolisthesis of second cervical vertebra, subsequent encounter for fracture with nonunion

  • S12.151S

    Other traumatic nondisplaced spondylolisthesis of second cervical vertebra, sequela

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