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
  • S93.326D

    Dislocation of tarsometatarsal joint of unspecified foot, subsequent encounter

  • S93.326S

    Dislocation of tarsometatarsal joint of unspecified foot, sequela

  • S93.33

    Other subluxation and dislocation of foot

  • S93.331

    Other subluxation of right foot

  • S93.331A

    Other subluxation of right foot, initial encounter

  • S93.331D

    Other subluxation of right foot, subsequent encounter

  • S93.331S

    Other subluxation of right foot, sequela

  • S93.332

    Other subluxation of left foot

  • S93.332A

    Other subluxation of left foot, initial encounter

  • S93.332D

    Other subluxation of left foot, subsequent encounter

  • S93.332S

    Other subluxation of left foot, sequela

  • S93.333

    Other subluxation of unspecified foot

  • S93.333A

    Other subluxation of unspecified foot, initial encounter

  • S93.333D

    Other subluxation of unspecified foot, subsequent encounter

  • S93.333S

    Other subluxation of unspecified foot, sequela

  • S93.334

    Other dislocation of right foot

  • S93.334A

    Other dislocation of right foot, initial encounter

  • S93.334D

    Other dislocation of right foot, subsequent encounter

  • S93.334S

    Other dislocation of right foot, sequela

  • S93.335

    Other dislocation of left foot

  • S93.335A

    Other dislocation of left foot, initial encounter

  • S93.335D

    Other dislocation of left foot, subsequent encounter

  • S93.335S

    Other dislocation of left foot, sequela

  • S93.336

    Other dislocation of unspecified foot

  • S93.336A

    Other dislocation of unspecified foot, initial encounter

  • S93.336D

    Other dislocation of unspecified foot, subsequent encounter

  • S93.336S

    Other dislocation of unspecified foot, sequela

  • S93.4

    Sprain of ankle

  • S93.40

    Sprain of unspecified ligament of ankle

  • S93.401

    Sprain of unspecified ligament of right ankle

  • S93.401A

    Sprain of unspecified ligament of right ankle, initial encounter

  • S93.401D

    Sprain of unspecified ligament of right ankle, subsequent encounter

  • S93.401S

    Sprain of unspecified ligament of right ankle, sequela

  • S93.402

    Sprain of unspecified ligament of left ankle

  • S93.402A

    Sprain of unspecified ligament of left ankle, initial encounter

  • S93.402D

    Sprain of unspecified ligament of left ankle, subsequent encounter

  • S93.402S

    Sprain of unspecified ligament of left ankle, sequela

  • S93.409

    Sprain of unspecified ligament of unspecified ankle

  • S93.409A

    Sprain of unspecified ligament of unspecified ankle, initial encounter

  • S93.409D

    Sprain of unspecified ligament of unspecified ankle, subsequent encounter

  • S93.409S

    Sprain of unspecified ligament of unspecified ankle, sequela

  • S93.41

    Sprain of calcaneofibular ligament

  • S93.411

    Sprain of calcaneofibular ligament of right ankle

  • S93.411A

    Sprain of calcaneofibular ligament of right ankle, initial encounter

  • S93.411D

    Sprain of calcaneofibular ligament of right ankle, subsequent encounter

  • S93.411S

    Sprain of calcaneofibular ligament of right ankle, sequela

  • S93.412

    Sprain of calcaneofibular ligament of left ankle

  • S93.412A

    Sprain of calcaneofibular ligament of left ankle, initial encounter

  • S93.412D

    Sprain of calcaneofibular ligament of left ankle, subsequent encounter

  • S93.412S

    Sprain of calcaneofibular ligament of left ankle, sequela

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