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S81

⚠ Non-billable (Header)

Open wound of knee and lower leg

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

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

direct

Cannot be coded with S81

  • • open fracture of knee and lower leg (S82.-)
  • • traumatic amputation of lower leg (S88.-)

⚠️ Excludes2

direct

May be coded together if both conditions coexist

  • • open wound of ankle and foot (S91.-)

Child Codes (2)

S81.0Open wound of kneeS81.8Open wound of lower leg

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Code Information

CodeS81
BillableNo — Header code
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes12 rule(s)
Excludes21 note(s)
Child codes2

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)