S81
Non-billableOpen wound of knee and lower leg
S81 is the ICD-10-CM code for Open wound of knee and lower leg. It is a non-billable category code — use a more specific child code such as S81.0 for billing.
- Status
- Header (non-billable)
- Chapter
- S00-T88
- Subcodes
- 2
- Edition
- FY2026
S00-T88 Injury, poisoning and certain other consequences of external causes
What this means — in plain language
MedlinePlus · NIHYour knee joint is made up of bone, cartilage, ligaments and fluid. Muscles and tendons help the knee joint move. When any of these structures is hurt or diseased, you have knee problems. Knee problems can cause pain and difficulty walking. Knee problems are very common, and they occur in people of all ages. Knee problems can interfere with many things, from participation in sports to simply getting up from a chair…
Read more about Knee Injuries and Disorders at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes1 — not coded here
Excludes2 — not included here
- •open wound of ankle and foot (S91.-)
Notes
- •any associated wound infection
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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