S80.821A Blister (nonthermal), right lower leg, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S80.821 with 7th character A (initial encounter).

Applies from S80 Superficial injury of knee and lower leg

Excludes2 (not included here)

• superficial injury of ankle and foot (S90.-)

7th character note

• The appropriate 7th character is to be added to each code from category S80

7th character required

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

Code annotations containing back-references to S80.821A

Back-references to S80

• Type 2 Excludes: M23 Internal derangement of knee ("current injury - see injury of knee and lower leg (S80-S89)")

Nearby codes

• S80.819A Abrasion, unspecified lower leg, initial encounter
• S80.819D Abrasion, unspecified lower leg, subsequent encounter
• S80.819S Abrasion, unspecified lower leg, sequela
• S80.82 Blister (nonthermal) of lower leg
• S80.821 Blister (nonthermal), right lower leg
• S80.821A Blister (nonthermal), right lower leg, initial encounter (this code)
• S80.821D Blister (nonthermal), right lower leg, subsequent encounter
• S80.821S Blister (nonthermal), right lower leg, sequela
• S80.822 Blister (nonthermal), left lower leg
• S80.822A Blister (nonthermal), left lower leg, initial encounter
• S80.822D Blister (nonthermal), left lower leg, subsequent encounter