S91.051A Open bite, right ankle, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S91.051 with 7th character A (initial encounter).

Applies from S91 Open wound of ankle, foot and toes

Excludes1 (never code together)

• open fracture of ankle, foot and toes (S92.-with 7th character B)
• traumatic amputation of ankle and foot (S98.-)

Code also

• any associated wound infection

7th character note

• The appropriate 7th character is to be added to each code from category S91

7th character required

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

Applies from S91.05 Open bite of ankle

Excludes1 (never code together)

• superficial bite of ankle (S90.56-, S90.57-)

Code annotations containing back-references to S91.051A

Back-references to S91.05

• Type 1 Excludes: S90.57 Other superficial bite of ankle ("open bite of ankle (S91.05-)")

Back-references to S91

• Type 2 Excludes: S71 Open wound of hip and thigh ("open wound of ankle, foot and toes (S91.-)")
• Type 2 Excludes: S81 Open wound of knee and lower leg ("open wound of ankle and foot (S91.-)")
• Code Also: S94 Injury of nerves at ankle and foot level ("any associated open wound (S91.-)")
• Code Also: S95 Injury of blood vessels at ankle and foot level ("any associated open wound (S91.-)")
• Code Also: S96 Injury of muscle and tendon at ankle and foot level ("any associated open wound (S91.-)")

Nearby codes

• S91.049A Puncture wound with foreign body, unspecified ankle, initial encounter
• S91.049D Puncture wound with foreign body, unspecified ankle, subsequent encounter
• S91.049S Puncture wound with foreign body, unspecified ankle, sequela
• S91.05 Open bite of ankle
• S91.051 Open bite, right ankle
• S91.051A Open bite, right ankle, initial encounter (this code)
• S91.051D Open bite, right ankle, subsequent encounter
• S91.051S Open bite, right ankle, sequela
• S91.052 Open bite, left ankle
• S91.052A Open bite, left ankle, initial encounter
• S91.052D Open bite, left ankle, subsequent encounter