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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  • S20.449A—

    External constriction of unspecified back wall of thorax, initial encounter

  • S20.449D—

    External constriction of unspecified back wall of thorax, subsequent encounter

  • S20.449S—

    External constriction of unspecified back wall of thorax, sequela

  • S20.45—

    Superficial foreign body of back wall of thorax

  • S20.451—

    Superficial foreign body of right back wall of thorax

  • S20.451A—

    Superficial foreign body of right back wall of thorax, initial encounter

  • S20.451D—

    Superficial foreign body of right back wall of thorax, subsequent encounter

  • S20.451S—

    Superficial foreign body of right back wall of thorax, sequela

  • S20.452—

    Superficial foreign body of left back wall of thorax

  • S20.452A—

    Superficial foreign body of left back wall of thorax, initial encounter

  • S20.452D—

    Superficial foreign body of left back wall of thorax, subsequent encounter

  • S20.452S—

    Superficial foreign body of left back wall of thorax, sequela

  • S20.459—

    Superficial foreign body of unspecified back wall of thorax

  • S20.459A—

    Superficial foreign body of unspecified back wall of thorax, initial encounter

  • S20.459D—

    Superficial foreign body of unspecified back wall of thorax, subsequent encounter

  • S20.459S—

    Superficial foreign body of unspecified back wall of thorax, sequela

  • S20.46—

    Insect bite (nonvenomous) of back wall of thorax

  • S20.461—

    Insect bite (nonvenomous) of right back wall of thorax

  • S20.461A—

    Insect bite (nonvenomous) of right back wall of thorax, initial encounter

  • S20.461D—

    Insect bite (nonvenomous) of right back wall of thorax, subsequent encounter

  • S20.461S—

    Insect bite (nonvenomous) of right back wall of thorax, sequela

  • S20.462—

    Insect bite (nonvenomous) of left back wall of thorax

  • S20.462A—

    Insect bite (nonvenomous) of left back wall of thorax, initial encounter

  • S20.462D—

    Insect bite (nonvenomous) of left back wall of thorax, subsequent encounter

  • S20.462S—

    Insect bite (nonvenomous) of left back wall of thorax, sequela

  • S20.469—

    Insect bite (nonvenomous) of unspecified back wall of thorax

  • S20.469A—

    Insect bite (nonvenomous) of unspecified back wall of thorax, initial encounter

  • S20.469D—

    Insect bite (nonvenomous) of unspecified back wall of thorax, subsequent encounter

  • S20.469S—

    Insect bite (nonvenomous) of unspecified back wall of thorax, sequela

  • S20.47—

    Other superficial bite of back wall of thorax

  • S20.471—

    Other superficial bite of right back wall of thorax

  • S20.471A—

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

  • S20.471D—

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

  • S20.471S—

    Other superficial bite of right back wall of thorax, sequela

  • S20.472—

    Other superficial bite of left back wall of thorax

  • S20.472A—

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

  • S20.472D—

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

  • 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

  • S20.9—

    Superficial injury of unspecified parts of thorax

  • 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

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