Home / ICD-10-CM / Chapter 20 / S90

S90 Superficial injury of ankle, foot and toes

ICD-10-CM category S90 sits in Chapter 20 (External causes of morbidity, V00-Y99). It contains 306 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

S90.0 Contusion of ankleS90.00 Contusion of unspecified ankleS90.01 Contusion of right ankleS90.02 Contusion of left ankleS90.1 Contusion of toe without damage to nailS90.11 Contusion of great toe without damage to nailS90.111 Contusion of right great toe without damage to nailS90.112 Contusion of left great toe without damage to nailS90.119 Contusion of unspecified great toe without damage to nailS90.12 Contusion of lesser toe without damage to nailS90.121 Contusion of right lesser toe(s) without damage to nailS90.122 Contusion of left lesser toe(s) without damage to nailS90.129 Contusion of unsp lesser toe(s) without damage to nailS90.2 Contusion of toe with damage to nailS90.21 Contusion of great toe with damage to nailS90.211 Contusion of right great toe with damage to nailS90.212 Contusion of left great toe with damage to nailS90.219 Contusion of unspecified great toe with damage to nailS90.22 Contusion of lesser toe with damage to nailS90.221 Contusion of right lesser toe(s) with damage to nailS90.222 Contusion of left lesser toe(s) with damage to nailS90.229 Contusion of unspecified lesser toe(s) with damage to nailS90.3 Contusion of footS90.30 Contusion of unspecified footS90.31 Contusion of right footS90.32 Contusion of left footS90.4 Other superficial injuries of toeS90.41 Abrasion of toeS90.411 Abrasion, right great toeS90.412 Abrasion, left great toeS90.413 Abrasion, unspecified great toeS90.414 Abrasion, right lesser toe(s)S90.415 Abrasion, left lesser toe(s)S90.416 Abrasion, unspecified lesser toe(s)S90.42 Blister (nonthermal) of toeS90.421 Blister (nonthermal), right great toeS90.422 Blister (nonthermal), left great toeS90.423 Blister (nonthermal), unspecified great toeS90.424 Blister (nonthermal), right lesser toe(s)S90.425 Blister (nonthermal), left lesser toe(s)

Billable codes in S90

CodeDescription
S90.00XAContusion of unspecified ankle, initial encounter
S90.00XDContusion of unspecified ankle, subsequent encounter
S90.00XSContusion of unspecified ankle, sequela
S90.01XAContusion of right ankle, initial encounter
S90.01XDContusion of right ankle, subsequent encounter
S90.01XSContusion of right ankle, sequela
S90.02XAContusion of left ankle, initial encounter
S90.02XDContusion of left ankle, subsequent encounter
S90.02XSContusion of left ankle, sequela
S90.111AContusion of right great toe without damage to nail, initial encounter
S90.111DContusion of right great toe without damage to nail, subsequent encounter
S90.111SContusion of right great toe without damage to nail, sequela
S90.112AContusion of left great toe without damage to nail, initial encounter
S90.112DContusion of left great toe without damage to nail, subsequent encounter
S90.112SContusion of left great toe without damage to nail, sequela
S90.119AContusion of unspecified great toe without damage to nail, initial encounter
S90.119DContusion of unspecified great toe without damage to nail, subsequent encounter
S90.119SContusion of unspecified great toe without damage to nail, sequela
S90.121AContusion of right lesser toe(s) without damage to nail, initial encounter
S90.121DContusion of right lesser toe(s) without damage to nail, subsequent encounter
S90.121SContusion of right lesser toe(s) without damage to nail, sequela
S90.122AContusion of left lesser toe(s) without damage to nail, initial encounter
S90.122DContusion of left lesser toe(s) without damage to nail, subsequent encounter
S90.122SContusion of left lesser toe(s) without damage to nail, sequela
S90.129AContusion of unspecified lesser toe(s) without damage to nail, initial encounter
S90.129DContusion of unspecified lesser toe(s) without damage to nail, subsequent encounter
S90.129SContusion of unspecified lesser toe(s) without damage to nail, sequela
S90.211AContusion of right great toe with damage to nail, initial encounter
S90.211DContusion of right great toe with damage to nail, subsequent encounter
S90.211SContusion of right great toe with damage to nail, sequela
S90.212AContusion of left great toe with damage to nail, initial encounter
S90.212DContusion of left great toe with damage to nail, subsequent encounter
S90.212SContusion of left great toe with damage to nail, sequela
S90.219AContusion of unspecified great toe with damage to nail, initial encounter
S90.219DContusion of unspecified great toe with damage to nail, subsequent encounter
S90.219SContusion of unspecified great toe with damage to nail, sequela
S90.221AContusion of right lesser toe(s) with damage to nail, initial encounter
S90.221DContusion of right lesser toe(s) with damage to nail, subsequent encounter
S90.221SContusion of right lesser toe(s) with damage to nail, sequela
S90.222AContusion of left lesser toe(s) with damage to nail, initial encounter
S90.222DContusion of left lesser toe(s) with damage to nail, subsequent encounter
S90.222SContusion of left lesser toe(s) with damage to nail, sequela
S90.229AContusion of unspecified lesser toe(s) with damage to nail, initial encounter
S90.229DContusion of unspecified lesser toe(s) with damage to nail, subsequent encounter
S90.229SContusion of unspecified lesser toe(s) with damage to nail, sequela
S90.30XAContusion of unspecified foot, initial encounter
S90.30XDContusion of unspecified foot, subsequent encounter
S90.30XSContusion of unspecified foot, sequela
S90.31XAContusion of right foot, initial encounter
S90.31XDContusion of right foot, subsequent encounter
S90.31XSContusion of right foot, sequela
S90.32XAContusion of left foot, initial encounter
S90.32XDContusion of left foot, subsequent encounter
S90.32XSContusion of left foot, sequela
S90.411AAbrasion, right great toe, initial encounter
S90.411DAbrasion, right great toe, subsequent encounter
S90.411SAbrasion, right great toe, sequela
S90.412AAbrasion, left great toe, initial encounter
S90.412DAbrasion, left great toe, subsequent encounter
S90.412SAbrasion, left great toe, sequela
S90.413AAbrasion, unspecified great toe, initial encounter
S90.413DAbrasion, unspecified great toe, subsequent encounter
S90.413SAbrasion, unspecified great toe, sequela
S90.414AAbrasion, right lesser toe(s), initial encounter
S90.414DAbrasion, right lesser toe(s), subsequent encounter
S90.414SAbrasion, right lesser toe(s), sequela
S90.415AAbrasion, left lesser toe(s), initial encounter
S90.415DAbrasion, left lesser toe(s), subsequent encounter
S90.415SAbrasion, left lesser toe(s), sequela
S90.416AAbrasion, unspecified lesser toe(s), initial encounter
S90.416DAbrasion, unspecified lesser toe(s), subsequent encounter
S90.416SAbrasion, unspecified lesser toe(s), sequela
S90.421ABlister (nonthermal), right great toe, initial encounter
S90.421DBlister (nonthermal), right great toe, subsequent encounter
S90.421SBlister (nonthermal), right great toe, sequela
S90.422ABlister (nonthermal), left great toe, initial encounter
S90.422DBlister (nonthermal), left great toe, subsequent encounter
S90.422SBlister (nonthermal), left great toe, sequela
S90.423ABlister (nonthermal), unspecified great toe, initial encounter
S90.423DBlister (nonthermal), unspecified great toe, subsequent encounter
S90.423SBlister (nonthermal), unspecified great toe, sequela
S90.424ABlister (nonthermal), right lesser toe(s), initial encounter
S90.424DBlister (nonthermal), right lesser toe(s), subsequent encounter
S90.424SBlister (nonthermal), right lesser toe(s), sequela
S90.425ABlister (nonthermal), left lesser toe(s), initial encounter
S90.425DBlister (nonthermal), left lesser toe(s), subsequent encounter
S90.425SBlister (nonthermal), left lesser toe(s), sequela
S90.426ABlister (nonthermal), unspecified lesser toe(s), initial encounter
S90.426DBlister (nonthermal), unspecified lesser toe(s), subsequent encounter
S90.426SBlister (nonthermal), unspecified lesser toe(s), sequela
S90.441AExternal constriction, right great toe, initial encounter
S90.441DExternal constriction, right great toe, subsequent encounter
S90.441SExternal constriction, right great toe, sequela
S90.442AExternal constriction, left great toe, initial encounter
S90.442DExternal constriction, left great toe, subsequent encounter
S90.442SExternal constriction, left great toe, sequela
S90.443AExternal constriction, unspecified great toe, initial encounter
S90.443DExternal constriction, unspecified great toe, subsequent encounter
S90.443SExternal constriction, unspecified great toe, sequela
S90.444AExternal constriction, right lesser toe(s), initial encounter
S90.444DExternal constriction, right lesser toe(s), subsequent encounter
S90.444SExternal constriction, right lesser toe(s), sequela
S90.445AExternal constriction, left lesser toe(s), initial encounter
S90.445DExternal constriction, left lesser toe(s), subsequent encounter
S90.445SExternal constriction, left lesser toe(s), sequela
S90.446AExternal constriction, unspecified lesser toe(s), initial encounter
S90.446DExternal constriction, unspecified lesser toe(s), subsequent encounter
S90.446SExternal constriction, unspecified lesser toe(s), sequela
S90.451ASuperficial foreign body, right great toe, initial encounter
S90.451DSuperficial foreign body, right great toe, subsequent encounter
S90.451SSuperficial foreign body, right great toe, sequela
S90.452ASuperficial foreign body, left great toe, initial encounter
S90.452DSuperficial foreign body, left great toe, subsequent encounter
S90.452SSuperficial foreign body, left great toe, sequela
S90.453ASuperficial foreign body, unspecified great toe, initial encounter
S90.453DSuperficial foreign body, unspecified great toe, subsequent encounter
S90.453SSuperficial foreign body, unspecified great toe, sequela
S90.454ASuperficial foreign body, right lesser toe(s), initial encounter
S90.454DSuperficial foreign body, right lesser toe(s), subsequent encounter
S90.454SSuperficial foreign body, right lesser toe(s), sequela
S90.455ASuperficial foreign body, left lesser toe(s), initial encounter
S90.455DSuperficial foreign body, left lesser toe(s), subsequent encounter
S90.455SSuperficial foreign body, left lesser toe(s), sequela
S90.456ASuperficial foreign body, unspecified lesser toe(s), initial encounter
S90.456DSuperficial foreign body, unspecified lesser toe(s), subsequent encounter
S90.456SSuperficial foreign body, unspecified lesser toe(s), sequela
S90.461AInsect bite (nonvenomous), right great toe, initial encounter
S90.461DInsect bite (nonvenomous), right great toe, subsequent encounter
S90.461SInsect bite (nonvenomous), right great toe, sequela
S90.462AInsect bite (nonvenomous), left great toe, initial encounter
S90.462DInsect bite (nonvenomous), left great toe, subsequent encounter
S90.462SInsect bite (nonvenomous), left great toe, sequela
S90.463AInsect bite (nonvenomous), unspecified great toe, initial encounter
S90.463DInsect bite (nonvenomous), unspecified great toe, subsequent encounter
S90.463SInsect bite (nonvenomous), unspecified great toe, sequela
S90.464AInsect bite (nonvenomous), right lesser toe(s), initial encounter
S90.464DInsect bite (nonvenomous), right lesser toe(s), subsequent encounter
S90.464SInsect bite (nonvenomous), right lesser toe(s), sequela
S90.465AInsect bite (nonvenomous), left lesser toe(s), initial encounter
S90.465DInsect bite (nonvenomous), left lesser toe(s), subsequent encounter
S90.465SInsect bite (nonvenomous), left lesser toe(s), sequela
S90.466AInsect bite (nonvenomous), unspecified lesser toe(s), initial encounter
S90.466DInsect bite (nonvenomous), unspecified lesser toe(s), subsequent encounter
S90.466SInsect bite (nonvenomous), unspecified lesser toe(s), sequela
S90.471AOther superficial bite of right great toe, initial encounter
S90.471DOther superficial bite of right great toe, subsequent encounter
S90.471SOther superficial bite of right great toe, sequela
S90.472AOther superficial bite of left great toe, initial encounter
S90.472DOther superficial bite of left great toe, subsequent encounter
S90.472SOther superficial bite of left great toe, sequela
S90.473AOther superficial bite of unspecified great toe, initial encounter
S90.473DOther superficial bite of unspecified great toe, subsequent encounter
S90.473SOther superficial bite of unspecified great toe, sequela
S90.474AOther superficial bite of right lesser toe(s), initial encounter
S90.474DOther superficial bite of right lesser toe(s), subsequent encounter
S90.474SOther superficial bite of right lesser toe(s), sequela
S90.475AOther superficial bite of left lesser toe(s), initial encounter
S90.475DOther superficial bite of left lesser toe(s), subsequent encounter
S90.475SOther superficial bite of left lesser toe(s), sequela
S90.476AOther superficial bite of unspecified lesser toe(s), initial encounter
S90.476DOther superficial bite of unspecified lesser toe(s), subsequent encounter
S90.476SOther superficial bite of unspecified lesser toe(s), sequela
S90.511AAbrasion, right ankle, initial encounter
S90.511DAbrasion, right ankle, subsequent encounter
S90.511SAbrasion, right ankle, sequela
S90.512AAbrasion, left ankle, initial encounter
S90.512DAbrasion, left ankle, subsequent encounter
S90.512SAbrasion, left ankle, sequela
S90.519AAbrasion, unspecified ankle, initial encounter
S90.519DAbrasion, unspecified ankle, subsequent encounter
S90.519SAbrasion, unspecified ankle, sequela
S90.521ABlister (nonthermal), right ankle, initial encounter
S90.521DBlister (nonthermal), right ankle, subsequent encounter
S90.521SBlister (nonthermal), right ankle, sequela
S90.522ABlister (nonthermal), left ankle, initial encounter
S90.522DBlister (nonthermal), left ankle, subsequent encounter
S90.522SBlister (nonthermal), left ankle, sequela
S90.529ABlister (nonthermal), unspecified ankle, initial encounter
S90.529DBlister (nonthermal), unspecified ankle, subsequent encounter
S90.529SBlister (nonthermal), unspecified ankle, sequela
S90.541AExternal constriction, right ankle, initial encounter
S90.541DExternal constriction, right ankle, subsequent encounter
S90.541SExternal constriction, right ankle, sequela
S90.542AExternal constriction, left ankle, initial encounter
S90.542DExternal constriction, left ankle, subsequent encounter
S90.542SExternal constriction, left ankle, sequela
S90.549AExternal constriction, unspecified ankle, initial encounter
S90.549DExternal constriction, unspecified ankle, subsequent encounter
S90.549SExternal constriction, unspecified ankle, sequela
S90.551ASuperficial foreign body, right ankle, initial encounter
S90.551DSuperficial foreign body, right ankle, subsequent encounter
S90.551SSuperficial foreign body, right ankle, sequela
S90.552ASuperficial foreign body, left ankle, initial encounter
S90.552DSuperficial foreign body, left ankle, subsequent encounter
S90.552SSuperficial foreign body, left ankle, sequela
S90.559ASuperficial foreign body, unspecified ankle, initial encounter
S90.559DSuperficial foreign body, unspecified ankle, subsequent encounter
S90.559SSuperficial foreign body, unspecified ankle, sequela
S90.561AInsect bite (nonvenomous), right ankle, initial encounter
S90.561DInsect bite (nonvenomous), right ankle, subsequent encounter
S90.561SInsect bite (nonvenomous), right ankle, sequela
S90.562AInsect bite (nonvenomous), left ankle, initial encounter
S90.562DInsect bite (nonvenomous), left ankle, subsequent encounter
S90.562SInsect bite (nonvenomous), left ankle, sequela
S90.569AInsect bite (nonvenomous), unspecified ankle, initial encounter
S90.569DInsect bite (nonvenomous), unspecified ankle, subsequent encounter
S90.569SInsect bite (nonvenomous), unspecified ankle, sequela
S90.571AOther superficial bite of ankle, right ankle, initial encounter
S90.571DOther superficial bite of ankle, right ankle, subsequent encounter
S90.571SOther superficial bite of ankle, right ankle, sequela
S90.572AOther superficial bite of ankle, left ankle, initial encounter
S90.572DOther superficial bite of ankle, left ankle, subsequent encounter
S90.572SOther superficial bite of ankle, left ankle, sequela
S90.579AOther superficial bite of ankle, unspecified ankle, initial encounter
S90.579DOther superficial bite of ankle, unspecified ankle, subsequent encounter
S90.579SOther superficial bite of ankle, unspecified ankle, sequela
S90.811AAbrasion, right foot, initial encounter
S90.811DAbrasion, right foot, subsequent encounter
S90.811SAbrasion, right foot, sequela
S90.812AAbrasion, left foot, initial encounter
S90.812DAbrasion, left foot, subsequent encounter
S90.812SAbrasion, left foot, sequela
S90.819AAbrasion, unspecified foot, initial encounter
S90.819DAbrasion, unspecified foot, subsequent encounter
S90.819SAbrasion, unspecified foot, sequela
S90.821ABlister (nonthermal), right foot, initial encounter
S90.821DBlister (nonthermal), right foot, subsequent encounter
S90.821SBlister (nonthermal), right foot, sequela
S90.822ABlister (nonthermal), left foot, initial encounter
S90.822DBlister (nonthermal), left foot, subsequent encounter
S90.822SBlister (nonthermal), left foot, sequela
S90.829ABlister (nonthermal), unspecified foot, initial encounter
S90.829DBlister (nonthermal), unspecified foot, subsequent encounter
S90.829SBlister (nonthermal), unspecified foot, sequela
S90.841AExternal constriction, right foot, initial encounter
S90.841DExternal constriction, right foot, subsequent encounter
S90.841SExternal constriction, right foot, sequela
S90.842AExternal constriction, left foot, initial encounter
S90.842DExternal constriction, left foot, subsequent encounter
S90.842SExternal constriction, left foot, sequela
S90.849AExternal constriction, unspecified foot, initial encounter
S90.849DExternal constriction, unspecified foot, subsequent encounter
S90.849SExternal constriction, unspecified foot, sequela
S90.851ASuperficial foreign body, right foot, initial encounter
S90.851DSuperficial foreign body, right foot, subsequent encounter
S90.851SSuperficial foreign body, right foot, sequela
S90.852ASuperficial foreign body, left foot, initial encounter
S90.852DSuperficial foreign body, left foot, subsequent encounter
S90.852SSuperficial foreign body, left foot, sequela
S90.859ASuperficial foreign body, unspecified foot, initial encounter
S90.859DSuperficial foreign body, unspecified foot, subsequent encounter
S90.859SSuperficial foreign body, unspecified foot, sequela
S90.861AInsect bite (nonvenomous), right foot, initial encounter
S90.861DInsect bite (nonvenomous), right foot, subsequent encounter
S90.861SInsect bite (nonvenomous), right foot, sequela
S90.862AInsect bite (nonvenomous), left foot, initial encounter
S90.862DInsect bite (nonvenomous), left foot, subsequent encounter
S90.862SInsect bite (nonvenomous), left foot, sequela
S90.869AInsect bite (nonvenomous), unspecified foot, initial encounter
S90.869DInsect bite (nonvenomous), unspecified foot, subsequent encounter
S90.869SInsect bite (nonvenomous), unspecified foot, sequela
S90.871AOther superficial bite of right foot, initial encounter
S90.871DOther superficial bite of right foot, subsequent encounter
S90.871SOther superficial bite of right foot, sequela
S90.872AOther superficial bite of left foot, initial encounter
S90.872DOther superficial bite of left foot, subsequent encounter
S90.872SOther superficial bite of left foot, sequela
S90.879AOther superficial bite of unspecified foot, initial encounter
S90.879DOther superficial bite of unspecified foot, subsequent encounter
S90.879SOther superficial bite of unspecified foot, sequela
S90.911AUnspecified superficial injury of right ankle, initial encounter
S90.911DUnspecified superficial injury of right ankle, subsequent encounter
S90.911SUnspecified superficial injury of right ankle, sequela
S90.912AUnspecified superficial injury of left ankle, initial encounter
S90.912DUnspecified superficial injury of left ankle, subsequent encounter
S90.912SUnspecified superficial injury of left ankle, sequela
S90.919AUnspecified superficial injury of unspecified ankle, initial encounter
S90.919DUnspecified superficial injury of unspecified ankle, subsequent encounter
S90.919SUnspecified superficial injury of unspecified ankle, sequela
S90.921AUnspecified superficial injury of right foot, initial encounter
S90.921DUnspecified superficial injury of right foot, subsequent encounter
S90.921SUnspecified superficial injury of right foot, sequela
S90.922AUnspecified superficial injury of left foot, initial encounter
S90.922DUnspecified superficial injury of left foot, subsequent encounter
S90.922SUnspecified superficial injury of left foot, sequela
S90.929AUnspecified superficial injury of unspecified foot, initial encounter
S90.929DUnspecified superficial injury of unspecified foot, subsequent encounter
S90.929SUnspecified superficial injury of unspecified foot, sequela
S90.931AUnspecified superficial injury of right great toe, initial encounter
S90.931DUnspecified superficial injury of right great toe, subsequent encounter
S90.931SUnspecified superficial injury of right great toe, sequela
S90.932AUnspecified superficial injury of left great toe, initial encounter
S90.932DUnspecified superficial injury of left great toe, subsequent encounter
S90.932SUnspecified superficial injury of left great toe, sequela
S90.933AUnspecified superficial injury of unspecified great toe, initial encounter
S90.933DUnspecified superficial injury of unspecified great toe, subsequent encounter
S90.933SUnspecified superficial injury of unspecified great toe, sequela
S90.934AUnspecified superficial injury of right lesser toe(s), initial encounter
S90.934DUnspecified superficial injury of right lesser toe(s), subsequent encounter
S90.934SUnspecified superficial injury of right lesser toe(s), sequela
S90.935AUnspecified superficial injury of left lesser toe(s), initial encounter
S90.935DUnspecified superficial injury of left lesser toe(s), subsequent encounter
S90.935SUnspecified superficial injury of left lesser toe(s), sequela
S90.936AUnspecified superficial injury of unspecified lesser toe(s), initial encounter
S90.936DUnspecified superficial injury of unspecified lesser toe(s), subsequent encounter
S90.936SUnspecified superficial injury of unspecified lesser toe(s), sequela

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