U.S. ICD-10-CM · FY 2027

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.

Code definition

Official description

S81

Open wound of knee and lower leg

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where S81 sits

  1. 1

    Chapter 19

    Injury, poisoning and certain other consequences of external causes (S00-T88)

  2. 2

    Section

    Injuries to the knee and lower leg (S80-S89)

  3. 3

    Category S81

    Open wound of knee and lower leg

  4. 4

    Code S81

    Open wound of knee and lower leg

More specific choices

Codes under S81

S81 is a non-billable category. Choose the child code that best matches the documented diagnosis.

S81.0

Open wound of knee

S81.8

Open wound of lower leg

Documentation details

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.-)

Transparency

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.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

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.-).

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