S90.426A Blister (nonthermal), unspecified lesser toe(s), initial encounter

Billable ICD-10-CM code, FY2026.

Built from S90.426 with 7th character A (initial encounter).

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

Code annotations containing back-references to S90.426A

Back-references to S90

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

Nearby codes

• S90.425 Blister (nonthermal), left lesser toe(s)
• S90.425A Blister (nonthermal), left lesser toe(s), initial encounter
• S90.425D Blister (nonthermal), left lesser toe(s), subsequent encounter
• S90.425S Blister (nonthermal), left lesser toe(s), sequela
• S90.426 Blister (nonthermal), unspecified lesser toe(s)
• S90.426A Blister (nonthermal), unspecified lesser toe(s), initial encounter (this code)
• S90.426D Blister (nonthermal), unspecified lesser toe(s), subsequent encounter
• S90.426S Blister (nonthermal), unspecified lesser toe(s), sequela
• S90.44 External constriction of toe
• S90.441 External constriction, right great toe
• S90.441A External constriction, right great toe, initial encounter