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
  • T24.632

    Corrosion of second degree of left lower leg

  • T24.632A

    Corrosion of second degree of left lower leg, initial encounter

  • T24.632D

    Corrosion of second degree of left lower leg, subsequent encounter

  • T24.632S

    Corrosion of second degree of left lower leg, sequela

  • T24.639

    Corrosion of second degree of unspecified lower leg

  • T24.639A

    Corrosion of second degree of unspecified lower leg, initial encounter

  • T24.639D

    Corrosion of second degree of unspecified lower leg, subsequent encounter

  • T24.639S

    Corrosion of second degree of unspecified lower leg, sequela

  • T24.69

    Corrosion of second degree of multiple sites of lower limb, except ankle and foot

  • T24.691

    Corrosion of second degree of multiple sites of right lower limb, except ankle and foot

  • T24.691A

    Corrosion of second degree of multiple sites of right lower limb, except ankle and foot, initial encounter

  • T24.691D

    Corrosion of second degree of multiple sites of right lower limb, except ankle and foot, subsequent encounter

  • T24.691S

    Corrosion of second degree of multiple sites of right lower limb, except ankle and foot, sequela

  • T24.692

    Corrosion of second degree of multiple sites of left lower limb, except ankle and foot

  • T24.692A

    Corrosion of second degree of multiple sites of left lower limb, except ankle and foot, initial encounter

  • T24.692D

    Corrosion of second degree of multiple sites of left lower limb, except ankle and foot, subsequent encounter

  • T24.692S

    Corrosion of second degree of multiple sites of left lower limb, except ankle and foot, sequela

  • T24.699

    Corrosion of second degree of multiple sites of unspecified lower limb, except ankle and foot

  • T24.699A

    Corrosion of second degree of multiple sites of unspecified lower limb, except ankle and foot, initial encounter

  • T24.699D

    Corrosion of second degree of multiple sites of unspecified lower limb, except ankle and foot, subsequent encounter

  • T24.699S

    Corrosion of second degree of multiple sites of unspecified lower limb, except ankle and foot, sequela

  • T24.7

    Corrosion of third degree of lower limb, except ankle and foot

  • T24.70

    Corrosion of third degree of unspecified site of lower limb, except ankle and foot

  • T24.701

    Corrosion of third degree of unspecified site of right lower limb, except ankle and foot

  • T24.701A

    Corrosion of third degree of unspecified site of right lower limb, except ankle and foot, initial encounter

  • T24.701D

    Corrosion of third degree of unspecified site of right lower limb, except ankle and foot, subsequent encounter

  • T24.701S

    Corrosion of third degree of unspecified site of right lower limb, except ankle and foot, sequela

  • T24.702

    Corrosion of third degree of unspecified site of left lower limb, except ankle and foot

  • T24.702A

    Corrosion of third degree of unspecified site of left lower limb, except ankle and foot, initial encounter

  • T24.702D

    Corrosion of third degree of unspecified site of left lower limb, except ankle and foot, subsequent encounter

  • T24.702S

    Corrosion of third degree of unspecified site of left lower limb, except ankle and foot, sequela

  • T24.709

    Corrosion of third degree of unspecified site of unspecified lower limb, except ankle and foot

  • T24.709A

    Corrosion of third degree of unspecified site of unspecified lower limb, except ankle and foot, initial encounter

  • T24.709D

    Corrosion of third degree of unspecified site of unspecified lower limb, except ankle and foot, subsequent encounter

  • T24.709S

    Corrosion of third degree of unspecified site of unspecified lower limb, except ankle and foot, sequela

  • T24.71

    Corrosion of third degree of thigh

  • T24.711

    Corrosion of third degree of right thigh

  • T24.711A

    Corrosion of third degree of right thigh, initial encounter

  • T24.711D

    Corrosion of third degree of right thigh, subsequent encounter

  • T24.711S

    Corrosion of third degree of right thigh, sequela

  • T24.712

    Corrosion of third degree of left thigh

  • T24.712A

    Corrosion of third degree of left thigh, initial encounter

  • T24.712D

    Corrosion of third degree of left thigh, subsequent encounter

  • T24.712S

    Corrosion of third degree of left thigh, sequela

  • T24.719

    Corrosion of third degree of unspecified thigh

  • T24.719A

    Corrosion of third degree of unspecified thigh, initial encounter

  • T24.719D

    Corrosion of third degree of unspecified thigh, subsequent encounter

  • T24.719S

    Corrosion of third degree of unspecified thigh, sequela

  • T24.72

    Corrosion of third degree of knee

  • T24.721

    Corrosion of third degree of right knee

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