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
  • S93.419

    Sprain of calcaneofibular ligament of unspecified ankle

  • S93.419A

    Sprain of calcaneofibular ligament of unspecified ankle, initial encounter

  • S93.419D

    Sprain of calcaneofibular ligament of unspecified ankle, subsequent encounter

  • S93.419S

    Sprain of calcaneofibular ligament of unspecified ankle, sequela

  • S93.42

    Sprain of deltoid ligament

  • S93.421

    Sprain of deltoid ligament of right ankle

  • S93.421A

    Sprain of deltoid ligament of right ankle, initial encounter

  • S93.421D

    Sprain of deltoid ligament of right ankle, subsequent encounter

  • S93.421S

    Sprain of deltoid ligament of right ankle, sequela

  • S93.422

    Sprain of deltoid ligament of left ankle

  • S93.422A

    Sprain of deltoid ligament of left ankle, initial encounter

  • S93.422D

    Sprain of deltoid ligament of left ankle, subsequent encounter

  • S93.422S

    Sprain of deltoid ligament of left ankle, sequela

  • S93.429

    Sprain of deltoid ligament of unspecified ankle

  • S93.429A

    Sprain of deltoid ligament of unspecified ankle, initial encounter

  • S93.429D

    Sprain of deltoid ligament of unspecified ankle, subsequent encounter

  • S93.429S

    Sprain of deltoid ligament of unspecified ankle, sequela

  • S93.43

    Sprain of tibiofibular ligament

  • S93.431

    Sprain of tibiofibular ligament of right ankle

  • S93.431A

    Sprain of tibiofibular ligament of right ankle, initial encounter

  • S93.431D

    Sprain of tibiofibular ligament of right ankle, subsequent encounter

  • S93.431S

    Sprain of tibiofibular ligament of right ankle, sequela

  • S93.432

    Sprain of tibiofibular ligament of left ankle

  • S93.432A

    Sprain of tibiofibular ligament of left ankle, initial encounter

  • S93.432D

    Sprain of tibiofibular ligament of left ankle, subsequent encounter

  • S93.432S

    Sprain of tibiofibular ligament of left ankle, sequela

  • S93.439

    Sprain of tibiofibular ligament of unspecified ankle

  • S93.439A

    Sprain of tibiofibular ligament of unspecified ankle, initial encounter

  • S93.439D

    Sprain of tibiofibular ligament of unspecified ankle, subsequent encounter

  • S93.439S

    Sprain of tibiofibular ligament of unspecified ankle, sequela

  • S93.49

    Sprain of other ligament of ankle

  • S93.491

    Sprain of other ligament of right ankle

  • S93.491A

    Sprain of other ligament of right ankle, initial encounter

  • S93.491D

    Sprain of other ligament of right ankle, subsequent encounter

  • S93.491S

    Sprain of other ligament of right ankle, sequela

  • S93.492

    Sprain of other ligament of left ankle

  • S93.492A

    Sprain of other ligament of left ankle, initial encounter

  • S93.492D

    Sprain of other ligament of left ankle, subsequent encounter

  • S93.492S

    Sprain of other ligament of left ankle, sequela

  • S93.499

    Sprain of other ligament of unspecified ankle

  • S93.499A

    Sprain of other ligament of unspecified ankle, initial encounter

  • S93.499D

    Sprain of other ligament of unspecified ankle, subsequent encounter

  • S93.499S

    Sprain of other ligament of unspecified ankle, sequela

  • S93.5

    Sprain of toe

  • S93.50

    Unspecified sprain of toe

  • S93.501

    Unspecified sprain of right great toe

  • S93.501A

    Unspecified sprain of right great toe, initial encounter

  • S93.501D

    Unspecified sprain of right great toe, subsequent encounter

  • S93.501S

    Unspecified sprain of right great toe, sequela

  • S93.502

    Unspecified sprain of left great toe

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