S90.54 External constriction of ankle

Non-billable header with 3 child codes.

Applies from S90 Superficial injury of ankle, foot and toes

7th character note

• The appropriate 7th character is to be added to each code from category S90

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Codes under S90.54

• S90.541 External constriction, right ankle
• S90.542 External constriction, left ankle
• S90.549 External constriction, unspecified ankle

Code annotations containing back-references to S90.54

Back-references to S90

• Type 2 Excludes: S80 Superficial injury of knee and lower leg ("superficial injury of ankle and foot (S90.-)")

Diagnosis Index entries for S90.54

• Constriction › external › ankle

Nearby codes

• S90.522S Blister (nonthermal), left ankle, sequela
• S90.529 Blister (nonthermal), unspecified ankle
• S90.529A Blister (nonthermal), unspecified ankle, initial encounter
• S90.529D Blister (nonthermal), unspecified ankle, subsequent encounter
• S90.529S Blister (nonthermal), unspecified ankle, sequela
• S90.54 External constriction of ankle (this code)
• S90.541 External constriction, right ankle
• S90.541A External constriction, right ankle, initial encounter
• S90.541D External constriction, right ankle, subsequent encounter
• S90.541S External constriction, right ankle, sequela
• S90.542 External constriction, left ankle