S81.009SBillable
Unspecified open wound, unspecified knee, sequela
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- S81
- Effective date
- October 1, 2026
Related codes in category S81
S81Open wound of knee and lower legS81.0Open wound of kneeS81.00Unspecified open wound of kneeS81.001Unspecified open wound, right kneeS81.001AUnspecified open wound, right knee, initial encounterYesS81.001DUnspecified open wound, right knee, subsequent encounterYesS81.001SUnspecified open wound, right knee, sequelaYesS81.002Unspecified open wound, left kneeS81.002AUnspecified open wound, left knee, initial encounterYesS81.002DUnspecified open wound, left knee, subsequent encounterYesS81.002SUnspecified open wound, left knee, sequelaYesS81.009Unspecified open wound, unspecified knee
Frequently asked questions
What is ICD-10 code S81.009S?
S81.009S is an ICD-10-CM diagnosis code for Unspecified open wound, unspecified knee, sequela.
Is S81.009S a billable code?
Yes. S81.009S is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is S81.009S in?
S81.009S falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did S81.009S become effective?
S81.009S has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to S81.009S?
S81.009S belongs to category S81, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.