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ICD-10-CM · FY 2026 APRIL UPDATE

S81

Open wound of knee and lower leg

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
S81.0Open wound of kneeCategory
S81.00Unspecified open wound of kneeCategory
S81.001Unspecified open wound, right kneeCategory
S81.001AUnspecified open wound, right knee, initial encounterBillable
S81.001DUnspecified open wound, right knee, subsequent encounterBillable
S81.001SUnspecified open wound, right knee, sequelaBillable
S81.002Unspecified open wound, left kneeCategory
S81.002AUnspecified open wound, left knee, initial encounterBillable
S81.002DUnspecified open wound, left knee, subsequent encounterBillable
S81.002SUnspecified open wound, left knee, sequelaBillable
S81.009Unspecified open wound, unspecified kneeCategory
S81.009AUnspecified open wound, unspecified knee, initial encounterBillable
S81.009DUnspecified open wound, unspecified knee, subsequent encounterBillable
S81.009SUnspecified open wound, unspecified knee, sequelaBillable
S81.01Laceration without foreign body of kneeCategory
S81.011Laceration without foreign body, right kneeCategory
S81.011ALaceration without foreign body, right knee, initial encounterBillable
S81.011DLaceration without foreign body, right knee, subsequent encounterBillable
S81.011SLaceration without foreign body, right knee, sequelaBillable
S81.012Laceration without foreign body, left kneeCategory
S81.012ALaceration without foreign body, left knee, initial encounterBillable
S81.012DLaceration without foreign body, left knee, subsequent encounterBillable
S81.012SLaceration without foreign body, left knee, sequelaBillable
S81.019Laceration without foreign body, unspecified kneeCategory
S81.019ALaceration without foreign body, unspecified knee, initial encounterBillable
S81.019DLaceration without foreign body, unspecified knee, subsequent encounterBillable
S81.019SLaceration without foreign body, unspecified knee, sequelaBillable
S81.02Laceration with foreign body of kneeCategory
S81.021Laceration with foreign body, right kneeCategory
S81.021ALaceration with foreign body, right knee, initial encounterBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.