S85.109S is the authoritative medical code for Unspecified injury of unspecified tibial artery, unspecified leg, sequela. This classification is used in medical billing and clinical recording to specify the clinical criteria for unspecified injury of unspecified tibial artery, unspecified leg, sequela (ICD-10-CM S85.109S), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Unspecified injury of unspecified tibial artery, unspecified leg, sequela is a billable ICD-10-CM diagnosis code S85.109S. Excludes2 (not included here): injury of blood vessels at ankle and foot level S95.-; burns and corrosions T20-T32; frostbite T33-T34; injuries of ankle and foot, except fracture of ankle and malleolus S90-S99; insect bite or sting, venomous T63.4. Code also: any associated open wound S81.-. 7th character: The appropriate 7th character is to be added to each code from category S85.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S85.109S in the official ICD-10-CM tabular list.
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- injury of blood vessels at ankle and foot level S95.-
- burns and corrosions T20-T32
- frostbite T33-T34
- injuries of ankle and foot, except fracture of ankle and malleolus S90-S99
- insect bite or sting, venomous T63.4
Code Also
Additional codes that may be required to fully describe the encounter.
- any associated open wound S81.-
Frequently Asked Questions (FAQ) & Clinical Guidance
Does S85.109S require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S85.
Can S85.109S be reported alongside related conditions?
Per Excludes2 instructions, S85.109S and the following may both be reported when both are present: injury of blood vessels at ankle and foot level (S95.-); burns and corrosions (T20-T32); frostbite (T33-T34); injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as S85.109S, with their registry titles.
- S85 — Injury of blood vessels at lower leg level
- S85.0 — Injury of popliteal artery
- S85.00 — Unspecified injury of popliteal artery
- S85.001 — Unspecified injury of popliteal artery, right leg
- S85.001A — Unspecified injury of popliteal artery, right leg, initial encounter
- S85.001D — Unspecified injury of popliteal artery, right leg, subsequent encounter
- S85.001S — Unspecified injury of popliteal artery, right leg, sequela
- S85.002 — Unspecified injury of popliteal artery, left leg
- S85.002A — Unspecified injury of popliteal artery, left leg, initial encounter
- S85.002D — Unspecified injury of popliteal artery, left leg, subsequent encounter
- S85.002S — Unspecified injury of popliteal artery, left leg, sequela
- S85.009 — Unspecified injury of popliteal artery, unspecified leg
- S85.009A — Unspecified injury of popliteal artery, unspecified leg, initial encounter
- S85.009D — Unspecified injury of popliteal artery, unspecified leg, subsequent encounter
- S85.009S — Unspecified injury of popliteal artery, unspecified leg, sequela
- S85.01 — Laceration of popliteal artery
- S85.011 — Laceration of popliteal artery, right leg
- S85.011A — Laceration of popliteal artery, right leg, initial encounter
- S85.011D — Laceration of popliteal artery, right leg, subsequent encounter
- S85.011S — Laceration of popliteal artery, right leg, sequela
- S85.012 — Laceration of popliteal artery, left leg
- S85.012A — Laceration of popliteal artery, left leg, initial encounter
- S85.012D — Laceration of popliteal artery, left leg, subsequent encounter
- S85.012S — Laceration of popliteal artery, left leg, sequela
- S85.019 — Laceration of popliteal artery, unspecified leg
- S85.019A — Laceration of popliteal artery, unspecified leg, initial encounter
- S85.019D — Laceration of popliteal artery, unspecified leg, subsequent encounter
- S85.019S — Laceration of popliteal artery, unspecified leg, sequela
- S85.09 — Other specified injury of popliteal artery
- S85.091 — Other specified injury of popliteal artery, right leg
- S85.091A — Other specified injury of popliteal artery, right leg, initial encounter
- S85.091D — Other specified injury of popliteal artery, right leg, subsequent encounter
- S85.091S — Other specified injury of popliteal artery, right leg, sequela
- S85.092 — Other specified injury of popliteal artery, left leg
- S85.092A — Other specified injury of popliteal artery, left leg, initial encounter
- S85.092D — Other specified injury of popliteal artery, left leg, subsequent encounter
- S85.092S — Other specified injury of popliteal artery, left leg, sequela
- S85.099 — Other specified injury of popliteal artery, unspecified leg
- S85.099A — Other specified injury of popliteal artery, unspecified leg, initial encounter
- S85.099D — Other specified injury of popliteal artery, unspecified leg, subsequent encounter
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code S86.109S
Unspecified injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, unspecified leg, sequela
ICD Code S89.109S
Unspecified physeal fracture of lower end of unspecified tibia, sequela