S85.161A Unspecified injury of posterior tibial artery, right leg, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S85.161 with 7th character A (initial encounter).

Applies from S85 Injury of blood vessels at lower leg level

Excludes2 (not included here)

• injury of blood vessels at ankle and foot level (S95.-)

Code also

• any associated open wound (S81.-)

7th character note

• The appropriate 7th character is to be added to each code from category S85

7th character required

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

Code annotations containing back-references to S85.161A

Back-references to S85.1

• Type 2 Excludes: S95 Injury of blood vessels at ankle and foot level ("injury of posterior tibial artery and vein (S85.1-, S85.8-)")

Back-references to S85

• Type 2 Excludes: M23 Internal derangement of knee ("current injury - see injury of knee and lower leg (S80-S89)")
• Type 2 Excludes: S75 Injury of blood vessels at hip and thigh level ("injury of blood vessels at lower leg level (S85.-)")

Nearby codes

• S85.159A Other specified injury of anterior tibial artery, unspecified leg, initial encounter
• S85.159D Other specified injury of anterior tibial artery, unspecified leg, subsequent encounter
• S85.159S Other specified injury of anterior tibial artery, unspecified leg, sequela
• S85.16 Unspecified injury of posterior tibial artery
• S85.161 Unspecified injury of posterior tibial artery, right leg
• S85.161A Unspecified injury of posterior tibial artery, right leg, initial encounter (this code)
• S85.161D Unspecified injury of posterior tibial artery, right leg, subsequent encounter
• S85.161S Unspecified injury of posterior tibial artery, right leg, sequela
• S85.162 Unspecified injury of posterior tibial artery, left leg
• S85.162A Unspecified injury of posterior tibial artery, left leg, initial encounter
• S85.162D Unspecified injury of posterior tibial artery, left leg, subsequent encounter