S81 ICD-10-CM Code: Open wound of knee and lower leg
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
S81Open wound of knee and lower leg
ICD-10-CM diagnosis code · United States clinical modification
Where S81 sits
- 1
Chapter 19
Injury, poisoning and certain other consequences of external causes (S00-T88)
- 2
Section
Injuries to the knee and lower leg (S80-S89)
- 3
Category S81
Open wound of knee and lower leg
- 4
Code S81
Open wound of knee and lower leg
Codes under S81
S81 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Notes for this code
Inclusion terms
No inclusion terms are listed for S81.
Code first
No “code first” instruction is listed for S81.
Use additional code
No “use additional code” instruction is listed for S81.
Excludes1
Conditions that should not be reported together with this code.
- open fracture of knee and lower leg (S82.-)
- traumatic amputation of lower leg (S88.-)
Excludes2
Conditions not included here that may be reported separately when present.
- open wound of ankle and foot (S91.-)
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code S81 mean?
S81 is the FY 2027 U.S. ICD-10-CM code for “Open wound of knee and lower leg.”
Is S81 a billable or specific ICD-10-CM code?
No. S81 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is S81 located in ICD-10-CM?
S81 is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Injuries to the knee and lower leg (S80-S89) (S80–S89), under category S81, Open wound of knee and lower leg.
What coding notes are listed for S81?
No inclusion terms are listed for S81 in this reference record. No code-first instruction is listed. Excludes1 notes: open fracture of knee and lower leg (S82.-); traumatic amputation of lower leg (S88.-). Excludes2 notes: open wound of ankle and foot (S91.-).