All ICD10 Codes
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.-)
All CodesBillable Only
Internal Codes
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  • T20.46XS—

    Corrosion of unspecified degree of forehead and cheek, sequela

  • T20.47—

    Corrosion of unspecified degree of neck

  • T20.47XA—

    Corrosion of unspecified degree of neck, initial encounter

  • T20.47XD—

    Corrosion of unspecified degree of neck, subsequent encounter

  • T20.47XS—

    Corrosion of unspecified degree of neck, sequela

  • T20.49—

    Corrosion of unspecified degree of multiple sites of head, face, and neck

  • T20.49XA—

    Corrosion of unspecified degree of multiple sites of head, face, and neck, initial encounter

  • T20.49XD—

    Corrosion of unspecified degree of multiple sites of head, face, and neck, subsequent encounter

  • T20.49XS—

    Corrosion of unspecified degree of multiple sites of head, face, and neck, sequela

  • T20.5—

    Corrosion of first degree of head, face, and neck

  • T20.50—

    Corrosion of first degree of head, face, and neck, unspecified site

  • T20.50XA—

    Corrosion of first degree of head, face, and neck, unspecified site, initial encounter

  • T20.50XD—

    Corrosion of first degree of head, face, and neck, unspecified site, subsequent encounter

  • T20.50XS—

    Corrosion of first degree of head, face, and neck, unspecified site, sequela

  • T20.51—

    Corrosion of first degree of ear [any part, except ear drum]

  • T20.511—

    Corrosion of first degree of right ear [any part, except ear drum]

  • T20.511A—

    Corrosion of first degree of right ear [any part, except ear drum], initial encounter

  • T20.511D—

    Corrosion of first degree of right ear [any part, except ear drum], subsequent encounter

  • T20.511S—

    Corrosion of first degree of right ear [any part, except ear drum], sequela

  • T20.512—

    Corrosion of first degree of left ear [any part, except ear drum]

  • T20.512A—

    Corrosion of first degree of left ear [any part, except ear drum], initial encounter

  • T20.512D—

    Corrosion of first degree of left ear [any part, except ear drum], subsequent encounter

  • T20.512S—

    Corrosion of first degree of left ear [any part, except ear drum], sequela

  • T20.519—

    Corrosion of first degree of unspecified ear [any part, except ear drum]

  • T20.519A—

    Corrosion of first degree of unspecified ear [any part, except ear drum], initial encounter

  • T20.519D—

    Corrosion of first degree of unspecified ear [any part, except ear drum], subsequent encounter

  • T20.519S—

    Corrosion of first degree of unspecified ear [any part, except ear drum], sequela

  • T20.52—

    Corrosion of first degree of lip(s)

  • T20.52XA—

    Corrosion of first degree of lip(s), initial encounter

  • T20.52XD—

    Corrosion of first degree of lip(s), subsequent encounter

  • T20.52XS—

    Corrosion of first degree of lip(s), sequela

  • T20.53—

    Corrosion of first degree of chin

  • T20.53XA—

    Corrosion of first degree of chin, initial encounter

  • T20.53XD—

    Corrosion of first degree of chin, subsequent encounter

  • T20.53XS—

    Corrosion of first degree of chin, sequela

  • T20.54—

    Corrosion of first degree of nose (septum)

  • T20.54XA—

    Corrosion of first degree of nose (septum), initial encounter

  • T20.54XD—

    Corrosion of first degree of nose (septum), subsequent encounter

  • T20.54XS—

    Corrosion of first degree of nose (septum), sequela

  • T20.55—

    Corrosion of first degree of scalp [any part]

  • T20.55XA—

    Corrosion of first degree of scalp [any part], initial encounter

  • T20.55XD—

    Corrosion of first degree of scalp [any part], subsequent encounter

  • T20.55XS—

    Corrosion of first degree of scalp [any part], sequela

  • T20.56—

    Corrosion of first degree of forehead and cheek

  • T20.56XA—

    Corrosion of first degree of forehead and cheek, initial encounter

  • T20.56XD—

    Corrosion of first degree of forehead and cheek, subsequent encounter

  • T20.56XS—

    Corrosion of first degree of forehead and cheek, sequela

  • T20.57—

    Corrosion of first degree of neck

  • T20.57XA—

    Corrosion of first degree of neck, initial encounter

  • T20.57XD—

    Corrosion of first degree of neck, subsequent encounter

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