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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  • S20.472S—

    Other superficial bite of left back wall of thorax, sequela

  • S20.479—

    Other superficial bite of unspecified back wall of thorax

  • S20.479A—

    Other superficial bite of unspecified back wall of thorax, initial encounter

  • S20.479D—

    Other superficial bite of unspecified back wall of thorax, subsequent encounter

  • S20.479S—

    Other superficial bite of unspecified back wall of thorax, sequela

  • S20.90—

    Unspecified superficial injury of unspecified parts of thorax

  • S20.90XA—

    Unspecified superficial injury of unspecified parts of thorax, initial encounter

  • S20.90XD—

    Unspecified superficial injury of unspecified parts of thorax, subsequent encounter

  • S20.90XS—

    Unspecified superficial injury of unspecified parts of thorax, sequela

  • S20.91—

    Abrasion of unspecified parts of thorax

  • S20.91XA—

    Abrasion of unspecified parts of thorax, initial encounter

  • S20.91XD—

    Abrasion of unspecified parts of thorax, subsequent encounter

  • S20.91XS—

    Abrasion of unspecified parts of thorax, sequela

  • S20.92—

    Blister (nonthermal) of unspecified parts of thorax

  • S20.92XA—

    Blister (nonthermal) of unspecified parts of thorax, initial encounter

  • S20.92XD—

    Blister (nonthermal) of unspecified parts of thorax, subsequent encounter

  • S20.92XS—

    Blister (nonthermal) of unspecified parts of thorax, sequela

  • S20.94—

    External constriction of unspecified parts of thorax

  • S20.94XA—

    External constriction of unspecified parts of thorax, initial encounter

  • S20.94XD—

    External constriction of unspecified parts of thorax, subsequent encounter

  • S20.94XS—

    External constriction of unspecified parts of thorax, sequela

  • S20.95—

    Superficial foreign body of unspecified parts of thorax

  • S20.95XA—

    Superficial foreign body of unspecified parts of thorax, initial encounter

  • S20.95XD—

    Superficial foreign body of unspecified parts of thorax, subsequent encounter

  • S20.95XS—

    Superficial foreign body of unspecified parts of thorax, sequela

  • S20.96—

    Insect bite (nonvenomous) of unspecified parts of thorax

  • S20.96XA—

    Insect bite (nonvenomous) of unspecified parts of thorax, initial encounter

  • S20.96XD—

    Insect bite (nonvenomous) of unspecified parts of thorax, subsequent encounter

  • S20.96XS—

    Insect bite (nonvenomous) of unspecified parts of thorax, sequela

  • S20.97—

    Other superficial bite of unspecified parts of thorax

  • S20.97XA—

    Other superficial bite of unspecified parts of thorax, initial encounter

  • S20.97XD—

    Other superficial bite of unspecified parts of thorax, subsequent encounter

  • S20.97XS—

    Other superficial bite of unspecified parts of thorax, sequela

  • S21.001—

    Unspecified open wound of right breast

  • S21.001A—

    Unspecified open wound of right breast, initial encounter

  • S21.001D—

    Unspecified open wound of right breast, subsequent encounter

  • S21.001S—

    Unspecified open wound of right breast, sequela

  • S21.002—

    Unspecified open wound of left breast

  • S21.002A—

    Unspecified open wound of left breast, initial encounter

  • S21.002D—

    Unspecified open wound of left breast, subsequent encounter

  • S21.002S—

    Unspecified open wound of left breast, sequela

  • S21.009—

    Unspecified open wound of unspecified breast

  • S21.009A—

    Unspecified open wound of unspecified breast, initial encounter

  • S21.009D—

    Unspecified open wound of unspecified breast, subsequent encounter

  • S21.009S—

    Unspecified open wound of unspecified breast, sequela

  • S21.011—

    Laceration without foreign body of right breast

  • S21.011A—

    Laceration without foreign body of right breast, initial encounter

  • S21.011D—

    Laceration without foreign body of right breast, subsequent encounter

  • S21.011S—

    Laceration without foreign body of right breast, sequela

  • S21.012—

    Laceration without foreign body of left breast

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