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S20 Superficial injury of thorax

ICD-10-CM category S20 sits in Chapter 20 (External causes of morbidity, V00-Y99). It contains 294 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Subcategories

S20.0 Contusion of breastS20.00 Contusion of breast, unspecified breastS20.01 Contusion of right breastS20.02 Contusion of left breastS20.1 Other and unspecified superficial injuries of breastS20.10 Unspecified superficial injuries of breastS20.101 Unspecified superficial injuries of breast, right breastS20.102 Unspecified superficial injuries of breast, left breastS20.109 Unsp superficial injuries of breast, unspecified breastS20.11 Abrasion of breastS20.111 Abrasion of breast, right breastS20.112 Abrasion of breast, left breastS20.119 Abrasion of breast, unspecified breastS20.12 Blister (nonthermal) of breastS20.121 Blister (nonthermal) of breast, right breastS20.122 Blister (nonthermal) of breast, left breastS20.129 Blister (nonthermal) of breast, unspecified breastS20.14 External constriction of part of breastS20.141 External constriction of part of breast, right breastS20.142 External constriction of part of breast, left breastS20.149 External constriction of part of breast, unspecified breastS20.15 Superficial foreign body of breastS20.151 Superficial foreign body of breast, right breastS20.152 Superficial foreign body of breast, left breastS20.159 Superficial foreign body of breast, unspecified breastS20.16 Insect bite (nonvenomous) of breastS20.161 Insect bite (nonvenomous) of breast, right breastS20.162 Insect bite (nonvenomous) of breast, left breastS20.169 Insect bite (nonvenomous) of breast, unspecified breastS20.17 Other superficial bite of breastS20.171 Other superficial bite of breast, right breastS20.172 Other superficial bite of breast, left breastS20.179 Other superficial bite of breast, unspecified breastS20.2 Contusion of thoraxS20.20 Contusion of thorax, unspecifiedS20.21 Contusion of front wall of thoraxS20.211 Contusion of right front wall of thoraxS20.212 Contusion of left front wall of thoraxS20.213 Contusion of bilateral front wall of thoraxS20.214 Contusion of middle front wall of thorax

Billable codes in S20

CodeDescription
S20.00XAContusion of breast, unspecified breast, initial encounter
S20.00XDContusion of breast, unspecified breast, subsequent encounter
S20.00XSContusion of breast, unspecified breast, sequela
S20.01XAContusion of right breast, initial encounter
S20.01XDContusion of right breast, subsequent encounter
S20.01XSContusion of right breast, sequela
S20.02XAContusion of left breast, initial encounter
S20.02XDContusion of left breast, subsequent encounter
S20.02XSContusion of left breast, sequela
S20.101AUnspecified superficial injuries of breast, right breast, initial encounter
S20.101DUnspecified superficial injuries of breast, right breast, subsequent encounter
S20.101SUnspecified superficial injuries of breast, right breast, sequela
S20.102AUnspecified superficial injuries of breast, left breast, initial encounter
S20.102DUnspecified superficial injuries of breast, left breast, subsequent encounter
S20.102SUnspecified superficial injuries of breast, left breast, sequela
S20.109AUnspecified superficial injuries of breast, unspecified breast, initial encounter
S20.109DUnspecified superficial injuries of breast, unspecified breast, subsequent encounter
S20.109SUnspecified superficial injuries of breast, unspecified breast, sequela
S20.111AAbrasion of breast, right breast, initial encounter
S20.111DAbrasion of breast, right breast, subsequent encounter
S20.111SAbrasion of breast, right breast, sequela
S20.112AAbrasion of breast, left breast, initial encounter
S20.112DAbrasion of breast, left breast, subsequent encounter
S20.112SAbrasion of breast, left breast, sequela
S20.119AAbrasion of breast, unspecified breast, initial encounter
S20.119DAbrasion of breast, unspecified breast, subsequent encounter
S20.119SAbrasion of breast, unspecified breast, sequela
S20.121ABlister (nonthermal) of breast, right breast, initial encounter
S20.121DBlister (nonthermal) of breast, right breast, subsequent encounter
S20.121SBlister (nonthermal) of breast, right breast, sequela
S20.122ABlister (nonthermal) of breast, left breast, initial encounter
S20.122DBlister (nonthermal) of breast, left breast, subsequent encounter
S20.122SBlister (nonthermal) of breast, left breast, sequela
S20.129ABlister (nonthermal) of breast, unspecified breast, initial encounter
S20.129DBlister (nonthermal) of breast, unspecified breast, subsequent encounter
S20.129SBlister (nonthermal) of breast, unspecified breast, sequela
S20.141AExternal constriction of part of breast, right breast, initial encounter
S20.141DExternal constriction of part of breast, right breast, subsequent encounter
S20.141SExternal constriction of part of breast, right breast, sequela
S20.142AExternal constriction of part of breast, left breast, initial encounter
S20.142DExternal constriction of part of breast, left breast, subsequent encounter
S20.142SExternal constriction of part of breast, left breast, sequela
S20.149AExternal constriction of part of breast, unspecified breast, initial encounter
S20.149DExternal constriction of part of breast, unspecified breast, subsequent encounter
S20.149SExternal constriction of part of breast, unspecified breast, sequela
S20.151ASuperficial foreign body of breast, right breast, initial encounter
S20.151DSuperficial foreign body of breast, right breast, subsequent encounter
S20.151SSuperficial foreign body of breast, right breast, sequela
S20.152ASuperficial foreign body of breast, left breast, initial encounter
S20.152DSuperficial foreign body of breast, left breast, subsequent encounter
S20.152SSuperficial foreign body of breast, left breast, sequela
S20.159ASuperficial foreign body of breast, unspecified breast, initial encounter
S20.159DSuperficial foreign body of breast, unspecified breast, subsequent encounter
S20.159SSuperficial foreign body of breast, unspecified breast, sequela
S20.161AInsect bite (nonvenomous) of breast, right breast, initial encounter
S20.161DInsect bite (nonvenomous) of breast, right breast, subsequent encounter
S20.161SInsect bite (nonvenomous) of breast, right breast, sequela
S20.162AInsect bite (nonvenomous) of breast, left breast, initial encounter
S20.162DInsect bite (nonvenomous) of breast, left breast, subsequent encounter
S20.162SInsect bite (nonvenomous) of breast, left breast, sequela
S20.169AInsect bite (nonvenomous) of breast, unspecified breast, initial encounter
S20.169DInsect bite (nonvenomous) of breast, unspecified breast, subsequent encounter
S20.169SInsect bite (nonvenomous) of breast, unspecified breast, sequela
S20.171AOther superficial bite of breast, right breast, initial encounter
S20.171DOther superficial bite of breast, right breast, subsequent encounter
S20.171SOther superficial bite of breast, right breast, sequela
S20.172AOther superficial bite of breast, left breast, initial encounter
S20.172DOther superficial bite of breast, left breast, subsequent encounter
S20.172SOther superficial bite of breast, left breast, sequela
S20.179AOther superficial bite of breast, unspecified breast, initial encounter
S20.179DOther superficial bite of breast, unspecified breast, subsequent encounter
S20.179SOther superficial bite of breast, unspecified breast, sequela
S20.20XAContusion of thorax, unspecified, initial encounter
S20.20XDContusion of thorax, unspecified, subsequent encounter
S20.20XSContusion of thorax, unspecified, sequela
S20.211AContusion of right front wall of thorax, initial encounter
S20.211DContusion of right front wall of thorax, subsequent encounter
S20.211SContusion of right front wall of thorax, sequela
S20.212AContusion of left front wall of thorax, initial encounter
S20.212DContusion of left front wall of thorax, subsequent encounter
S20.212SContusion of left front wall of thorax, sequela
S20.213AContusion of bilateral front wall of thorax, initial encounter
S20.213DContusion of bilateral front wall of thorax, subsequent encounter
S20.213SContusion of bilateral front wall of thorax, sequela
S20.214AContusion of middle front wall of thorax, initial encounter
S20.214DContusion of middle front wall of thorax, subsequent encounter
S20.214SContusion of middle front wall of thorax, sequela
S20.219AContusion of unspecified front wall of thorax, initial encounter
S20.219DContusion of unspecified front wall of thorax, subsequent encounter
S20.219SContusion of unspecified front wall of thorax, sequela
S20.221AContusion of right back wall of thorax, initial encounter
S20.221DContusion of right back wall of thorax, subsequent encounter
S20.221SContusion of right back wall of thorax, sequela
S20.222AContusion of left back wall of thorax, initial encounter
S20.222DContusion of left back wall of thorax, subsequent encounter
S20.222SContusion of left back wall of thorax, sequela
S20.223AContusion of bilateral back wall of thorax, initial encounter
S20.223DContusion of bilateral back wall of thorax, subsequent encounter
S20.223SContusion of bilateral back wall of thorax, sequela
S20.224AContusion of middle back wall of thorax, initial encounter
S20.224DContusion of middle back wall of thorax, subsequent encounter
S20.224SContusion of middle back wall of thorax, sequela
S20.229AContusion of unspecified back wall of thorax, initial encounter
S20.229DContusion of unspecified back wall of thorax, subsequent encounter
S20.229SContusion of unspecified back wall of thorax, sequela
S20.301AUnspecified superficial injuries of right front wall of thorax, initial encounter
S20.301DUnspecified superficial injuries of right front wall of thorax, subsequent encounter
S20.301SUnspecified superficial injuries of right front wall of thorax, sequela
S20.302AUnspecified superficial injuries of left front wall of thorax, initial encounter
S20.302DUnspecified superficial injuries of left front wall of thorax, subsequent encounter
S20.302SUnspecified superficial injuries of left front wall of thorax, sequela
S20.303AUnspecified superficial injuries of bilateral front wall of thorax, initial encounter
S20.303DUnspecified superficial injuries of bilateral front wall of thorax, subsequent encounter
S20.303SUnspecified superficial injuries of bilateral front wall of thorax, sequela
S20.304AUnspecified superficial injuries of middle front wall of thorax, initial encounter
S20.304DUnspecified superficial injuries of middle front wall of thorax, subsequent encounter
S20.304SUnspecified superficial injuries of middle front wall of thorax, sequela
S20.309AUnspecified superficial injuries of unspecified front wall of thorax, initial encounter
S20.309DUnspecified superficial injuries of unspecified front wall of thorax, subsequent encounter
S20.309SUnspecified superficial injuries of unspecified front wall of thorax, sequela
S20.311AAbrasion of right front wall of thorax, initial encounter
S20.311DAbrasion of right front wall of thorax, subsequent encounter
S20.311SAbrasion of right front wall of thorax, sequela
S20.312AAbrasion of left front wall of thorax, initial encounter
S20.312DAbrasion of left front wall of thorax, subsequent encounter
S20.312SAbrasion of left front wall of thorax, sequela
S20.313AAbrasion of bilateral front wall of thorax, initial encounter
S20.313DAbrasion of bilateral front wall of thorax, subsequent encounter
S20.313SAbrasion of bilateral front wall of thorax, sequela
S20.314AAbrasion of middle front wall of thorax, initial encounter
S20.314DAbrasion of middle front wall of thorax, subsequent encounter
S20.314SAbrasion of middle front wall of thorax, sequela
S20.319AAbrasion of unspecified front wall of thorax, initial encounter
S20.319DAbrasion of unspecified front wall of thorax, subsequent encounter
S20.319SAbrasion of unspecified front wall of thorax, sequela
S20.321ABlister (nonthermal) of right front wall of thorax, initial encounter
S20.321DBlister (nonthermal) of right front wall of thorax, subsequent encounter
S20.321SBlister (nonthermal) of right front wall of thorax, sequela
S20.322ABlister (nonthermal) of left front wall of thorax, initial encounter
S20.322DBlister (nonthermal) of left front wall of thorax, subsequent encounter
S20.322SBlister (nonthermal) of left front wall of thorax, sequela
S20.323ABlister (nonthermal) of bilateral front wall of thorax, initial encounter
S20.323DBlister (nonthermal) of bilateral front wall of thorax, subsequent encounter
S20.323SBlister (nonthermal) of bilateral front wall of thorax, sequela
S20.324ABlister (nonthermal) of middle front wall of thorax, initial encounter
S20.324DBlister (nonthermal) of middle front wall of thorax, subsequent encounter
S20.324SBlister (nonthermal) of middle front wall of thorax, sequela
S20.329ABlister (nonthermal) of unspecified front wall of thorax, initial encounter
S20.329DBlister (nonthermal) of unspecified front wall of thorax, subsequent encounter
S20.329SBlister (nonthermal) of unspecified front wall of thorax, sequela
S20.341AExternal constriction of right front wall of thorax, initial encounter
S20.341DExternal constriction of right front wall of thorax, subsequent encounter
S20.341SExternal constriction of right front wall of thorax, sequela
S20.342AExternal constriction of left front wall of thorax, initial encounter
S20.342DExternal constriction of left front wall of thorax, subsequent encounter
S20.342SExternal constriction of left front wall of thorax, sequela
S20.343AExternal constriction of bilateral front wall of thorax, initial encounter
S20.343DExternal constriction of bilateral front wall of thorax, subsequent encounter
S20.343SExternal constriction of bilateral front wall of thorax, sequela
S20.344AExternal constriction of middle front wall of thorax, initial encounter
S20.344DExternal constriction of middle front wall of thorax, subsequent encounter
S20.344SExternal constriction of middle front wall of thorax, sequela
S20.349AExternal constriction of unspecified front wall of thorax, initial encounter
S20.349DExternal constriction of unspecified front wall of thorax, subsequent encounter
S20.349SExternal constriction of unspecified front wall of thorax, sequela
S20.351ASuperficial foreign body of right front wall of thorax, initial encounter
S20.351DSuperficial foreign body of right front wall of thorax, subsequent encounter
S20.351SSuperficial foreign body of right front wall of thorax, sequela
S20.352ASuperficial foreign body of left front wall of thorax, initial encounter
S20.352DSuperficial foreign body of left front wall of thorax, subsequent encounter
S20.352SSuperficial foreign body of left front wall of thorax, sequela
S20.353ASuperficial foreign body of bilateral front wall of thorax, initial encounter
S20.353DSuperficial foreign body of bilateral front wall of thorax, subsequent encounter
S20.353SSuperficial foreign body of bilateral front wall of thorax, sequela
S20.354ASuperficial foreign body of middle front wall of thorax, initial encounter
S20.354DSuperficial foreign body of middle front wall of thorax, subsequent encounter
S20.354SSuperficial foreign body of middle front wall of thorax, sequela
S20.359ASuperficial foreign body of unspecified front wall of thorax, initial encounter
S20.359DSuperficial foreign body of unspecified front wall of thorax, subsequent encounter
S20.359SSuperficial foreign body of unspecified front wall of thorax, sequela
S20.361AInsect bite (nonvenomous) of right front wall of thorax, initial encounter
S20.361DInsect bite (nonvenomous) of right front wall of thorax, subsequent encounter
S20.361SInsect bite (nonvenomous) of right front wall of thorax, sequela
S20.362AInsect bite (nonvenomous) of left front wall of thorax, initial encounter
S20.362DInsect bite (nonvenomous) of left front wall of thorax, subsequent encounter
S20.362SInsect bite (nonvenomous) of left front wall of thorax, sequela
S20.363AInsect bite (nonvenomous) of bilateral front wall of thorax, initial encounter
S20.363DInsect bite (nonvenomous) of bilateral front wall of thorax, subsequent encounter
S20.363SInsect bite (nonvenomous) of bilateral front wall of thorax, sequela
S20.364AInsect bite (nonvenomous) of middle front wall of thorax, initial encounter
S20.364DInsect bite (nonvenomous) of middle front wall of thorax, subsequent encounter
S20.364SInsect bite (nonvenomous) of middle front wall of thorax, sequela
S20.369AInsect bite (nonvenomous) of unspecified front wall of thorax, initial encounter
S20.369DInsect bite (nonvenomous) of unspecified front wall of thorax, subsequent encounter
S20.369SInsect bite (nonvenomous) of unspecified front wall of thorax, sequela
S20.371AOther superficial bite of right front wall of thorax, initial encounter
S20.371DOther superficial bite of right front wall of thorax, subsequent encounter
S20.371SOther superficial bite of right front wall of thorax, sequela
S20.372AOther superficial bite of left front wall of thorax, initial encounter
S20.372DOther superficial bite of left front wall of thorax, subsequent encounter
S20.372SOther superficial bite of left front wall of thorax, sequela
S20.373AOther superficial bite of bilateral front wall of thorax, initial encounter
S20.373DOther superficial bite of bilateral front wall of thorax, subsequent encounter
S20.373SOther superficial bite of bilateral front wall of thorax, sequela
S20.374AOther superficial bite of middle front wall of thorax, initial encounter
S20.374DOther superficial bite of middle front wall of thorax, subsequent encounter
S20.374SOther superficial bite of middle front wall of thorax, sequela
S20.379AOther superficial bite of unspecified front wall of thorax, initial encounter
S20.379DOther superficial bite of unspecified front wall of thorax, subsequent encounter
S20.379SOther superficial bite of unspecified front wall of thorax, sequela
S20.401AUnspecified superficial injuries of right back wall of thorax, initial encounter
S20.401DUnspecified superficial injuries of right back wall of thorax, subsequent encounter
S20.401SUnspecified superficial injuries of right back wall of thorax, sequela
S20.402AUnspecified superficial injuries of left back wall of thorax, initial encounter
S20.402DUnspecified superficial injuries of left back wall of thorax, subsequent encounter
S20.402SUnspecified superficial injuries of left back wall of thorax, sequela
S20.409AUnspecified superficial injuries of unspecified back wall of thorax, initial encounter
S20.409DUnspecified superficial injuries of unspecified back wall of thorax, subsequent encounter
S20.409SUnspecified superficial injuries of unspecified back wall of thorax, sequela
S20.411AAbrasion of right back wall of thorax, initial encounter
S20.411DAbrasion of right back wall of thorax, subsequent encounter
S20.411SAbrasion of right back wall of thorax, sequela
S20.412AAbrasion of left back wall of thorax, initial encounter
S20.412DAbrasion of left back wall of thorax, subsequent encounter
S20.412SAbrasion of left back wall of thorax, sequela
S20.419AAbrasion of unspecified back wall of thorax, initial encounter
S20.419DAbrasion of unspecified back wall of thorax, subsequent encounter
S20.419SAbrasion of unspecified back wall of thorax, sequela
S20.421ABlister (nonthermal) of right back wall of thorax, initial encounter
S20.421DBlister (nonthermal) of right back wall of thorax, subsequent encounter
S20.421SBlister (nonthermal) of right back wall of thorax, sequela
S20.422ABlister (nonthermal) of left back wall of thorax, initial encounter
S20.422DBlister (nonthermal) of left back wall of thorax, subsequent encounter
S20.422SBlister (nonthermal) of left back wall of thorax, sequela
S20.429ABlister (nonthermal) of unspecified back wall of thorax, initial encounter
S20.429DBlister (nonthermal) of unspecified back wall of thorax, subsequent encounter
S20.429SBlister (nonthermal) of unspecified back wall of thorax, sequela
S20.441AExternal constriction of right back wall of thorax, initial encounter
S20.441DExternal constriction of right back wall of thorax, subsequent encounter
S20.441SExternal constriction of right back wall of thorax, sequela
S20.442AExternal constriction of left back wall of thorax, initial encounter
S20.442DExternal constriction of left back wall of thorax, subsequent encounter
S20.442SExternal constriction of left back wall of thorax, sequela
S20.449AExternal constriction of unspecified back wall of thorax, initial encounter
S20.449DExternal constriction of unspecified back wall of thorax, subsequent encounter
S20.449SExternal constriction of unspecified back wall of thorax, sequela
S20.451ASuperficial foreign body of right back wall of thorax, initial encounter
S20.451DSuperficial foreign body of right back wall of thorax, subsequent encounter
S20.451SSuperficial foreign body of right back wall of thorax, sequela
S20.452ASuperficial foreign body of left back wall of thorax, initial encounter
S20.452DSuperficial foreign body of left back wall of thorax, subsequent encounter
S20.452SSuperficial foreign body of left back wall of thorax, sequela
S20.459ASuperficial foreign body of unspecified back wall of thorax, initial encounter
S20.459DSuperficial foreign body of unspecified back wall of thorax, subsequent encounter
S20.459SSuperficial foreign body of unspecified back wall of thorax, sequela
S20.461AInsect bite (nonvenomous) of right back wall of thorax, initial encounter
S20.461DInsect bite (nonvenomous) of right back wall of thorax, subsequent encounter
S20.461SInsect bite (nonvenomous) of right back wall of thorax, sequela
S20.462AInsect bite (nonvenomous) of left back wall of thorax, initial encounter
S20.462DInsect bite (nonvenomous) of left back wall of thorax, subsequent encounter
S20.462SInsect bite (nonvenomous) of left back wall of thorax, sequela
S20.469AInsect bite (nonvenomous) of unspecified back wall of thorax, initial encounter
S20.469DInsect bite (nonvenomous) of unspecified back wall of thorax, subsequent encounter
S20.469SInsect bite (nonvenomous) of unspecified back wall of thorax, sequela
S20.471AOther superficial bite of right back wall of thorax, initial encounter
S20.471DOther superficial bite of right back wall of thorax, subsequent encounter
S20.471SOther superficial bite of right back wall of thorax, sequela
S20.472AOther superficial bite of left back wall of thorax, initial encounter
S20.472DOther superficial bite of left back wall of thorax, subsequent encounter
S20.472SOther superficial bite of left back wall of thorax, sequela
S20.479AOther superficial bite of unspecified back wall of thorax, initial encounter
S20.479DOther superficial bite of unspecified back wall of thorax, subsequent encounter
S20.479SOther superficial bite of unspecified back wall of thorax, sequela
S20.90XAUnspecified superficial injury of unspecified parts of thorax, initial encounter
S20.90XDUnspecified superficial injury of unspecified parts of thorax, subsequent encounter
S20.90XSUnspecified superficial injury of unspecified parts of thorax, sequela
S20.91XAAbrasion of unspecified parts of thorax, initial encounter
S20.91XDAbrasion of unspecified parts of thorax, subsequent encounter
S20.91XSAbrasion of unspecified parts of thorax, sequela
S20.92XABlister (nonthermal) of unspecified parts of thorax, initial encounter
S20.92XDBlister (nonthermal) of unspecified parts of thorax, subsequent encounter
S20.92XSBlister (nonthermal) of unspecified parts of thorax, sequela
S20.94XAExternal constriction of unspecified parts of thorax, initial encounter
S20.94XDExternal constriction of unspecified parts of thorax, subsequent encounter
S20.94XSExternal constriction of unspecified parts of thorax, sequela
S20.95XASuperficial foreign body of unspecified parts of thorax, initial encounter
S20.95XDSuperficial foreign body of unspecified parts of thorax, subsequent encounter
S20.95XSSuperficial foreign body of unspecified parts of thorax, sequela
S20.96XAInsect bite (nonvenomous) of unspecified parts of thorax, initial encounter
S20.96XDInsect bite (nonvenomous) of unspecified parts of thorax, subsequent encounter
S20.96XSInsect bite (nonvenomous) of unspecified parts of thorax, sequela
S20.97XAOther superficial bite of unspecified parts of thorax, initial encounter
S20.97XDOther superficial bite of unspecified parts of thorax, subsequent encounter
S20.97XSOther superficial bite of unspecified parts of thorax, sequela

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