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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  • S20.369S—

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

  • S20.371—

    Other superficial bite of right front wall of thorax

  • S20.371A—

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

  • S20.371D—

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

  • S20.371S—

    Other superficial bite of right front wall of thorax, sequela

  • S20.372—

    Other superficial bite of left front wall of thorax

  • S20.372A—

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

  • S20.372D—

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

  • S20.372S—

    Other superficial bite of left front wall of thorax, sequela

  • S20.373—

    Other superficial bite of bilateral front wall of thorax

  • S20.373A—

    Other superficial bite of bilateral front wall of thorax, initial encounter

  • S20.373D—

    Other superficial bite of bilateral front wall of thorax, subsequent encounter

  • S20.373S—

    Other superficial bite of bilateral front wall of thorax, sequela

  • S20.374—

    Other superficial bite of middle front wall of thorax

  • S20.374A—

    Other superficial bite of middle front wall of thorax, initial encounter

  • S20.374D—

    Other superficial bite of middle front wall of thorax, subsequent encounter

  • S20.374S—

    Other superficial bite of middle front wall of thorax, sequela

  • S20.379—

    Other superficial bite of unspecified front wall of thorax

  • S20.379A—

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

  • S20.379D—

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

  • S20.379S—

    Other superficial bite of unspecified front wall of thorax, sequela

  • S20.401—

    Unspecified superficial injuries of right back wall of thorax

  • S20.401A—

    Unspecified superficial injuries of right back wall of thorax, initial encounter

  • S20.401D—

    Unspecified superficial injuries of right back wall of thorax, subsequent encounter

  • S20.401S—

    Unspecified superficial injuries of right back wall of thorax, sequela

  • S20.402—

    Unspecified superficial injuries of left back wall of thorax

  • S20.402A—

    Unspecified superficial injuries of left back wall of thorax, initial encounter

  • S20.402D—

    Unspecified superficial injuries of left back wall of thorax, subsequent encounter

  • S20.402S—

    Unspecified superficial injuries of left back wall of thorax, sequela

  • S20.409—

    Unspecified superficial injuries of unspecified back wall of thorax

  • S20.409A—

    Unspecified superficial injuries of unspecified back wall of thorax, initial encounter

  • S20.409D—

    Unspecified superficial injuries of unspecified back wall of thorax, subsequent encounter

  • S20.409S—

    Unspecified superficial injuries of unspecified back wall of thorax, sequela

  • S20.411—

    Abrasion of right back wall of thorax

  • S20.411A—

    Abrasion of right back wall of thorax, initial encounter

  • S20.411D—

    Abrasion of right back wall of thorax, subsequent encounter

  • S20.411S—

    Abrasion of right back wall of thorax, sequela

  • S20.412—

    Abrasion of left back wall of thorax

  • S20.412A—

    Abrasion of left back wall of thorax, initial encounter

  • S20.412D—

    Abrasion of left back wall of thorax, subsequent encounter

  • S20.412S—

    Abrasion of left back wall of thorax, sequela

  • S20.419—

    Abrasion of unspecified back wall of thorax

  • S20.419A—

    Abrasion of unspecified back wall of thorax, initial encounter

  • S20.419D—

    Abrasion of unspecified back wall of thorax, subsequent encounter

  • S20.419S—

    Abrasion of unspecified back wall of thorax, sequela

  • S20.421—

    Blister (nonthermal) of right back wall of thorax

  • S20.421A—

    Blister (nonthermal) of right back wall of thorax, initial encounter

  • S20.421D—

    Blister (nonthermal) of right back wall of thorax, subsequent encounter

  • S20.421S—

    Blister (nonthermal) of right back wall of thorax, sequela

  • S20.422—

    Blister (nonthermal) of left back wall of thorax

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