S90.84 External constriction of foot

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 S90.84

• S90.841 External constriction, right foot
• S90.842 External constriction, left foot
• S90.849 External constriction, unspecified foot

Code annotations containing back-references to S90.84

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 S90.84

• Constriction › external › foot (except toe(s) alone)

Nearby codes

• S90.822S Blister (nonthermal), left foot, sequela
• S90.829 Blister (nonthermal), unspecified foot
• S90.829A Blister (nonthermal), unspecified foot, initial encounter
• S90.829D Blister (nonthermal), unspecified foot, subsequent encounter
• S90.829S Blister (nonthermal), unspecified foot, sequela
• S90.84 External constriction of foot (this code)
• S90.841 External constriction, right foot
• S90.841A External constriction, right foot, initial encounter
• S90.841D External constriction, right foot, subsequent encounter
• S90.841S External constriction, right foot, sequela
• S90.842 External constriction, left foot