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ICD-10-CM · FY 2026 APRIL UPDATE

S91

Open wound of ankle, foot and toes

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
S91.0Open wound of ankleCategory
S91.00Unspecified open wound of ankleCategory
S91.001Unspecified open wound, right ankleCategory
S91.001AUnspecified open wound, right ankle, initial encounterBillable
S91.001DUnspecified open wound, right ankle, subsequent encounterBillable
S91.001SUnspecified open wound, right ankle, sequelaBillable
S91.002Unspecified open wound, left ankleCategory
S91.002AUnspecified open wound, left ankle, initial encounterBillable
S91.002DUnspecified open wound, left ankle, subsequent encounterBillable
S91.002SUnspecified open wound, left ankle, sequelaBillable
S91.009Unspecified open wound, unspecified ankleCategory
S91.009AUnspecified open wound, unspecified ankle, initial encounterBillable
S91.009DUnspecified open wound, unspecified ankle, subsequent encounterBillable
S91.009SUnspecified open wound, unspecified ankle, sequelaBillable
S91.01Laceration without foreign body of ankleCategory
S91.011Laceration without foreign body, right ankleCategory
S91.011ALaceration without foreign body, right ankle, initial encounterBillable
S91.011DLaceration without foreign body, right ankle, subsequent encounterBillable
S91.011SLaceration without foreign body, right ankle, sequelaBillable
S91.012Laceration without foreign body, left ankleCategory
S91.012ALaceration without foreign body, left ankle, initial encounterBillable
S91.012DLaceration without foreign body, left ankle, subsequent encounterBillable
S91.012SLaceration without foreign body, left ankle, sequelaBillable
S91.019Laceration without foreign body, unspecified ankleCategory
S91.019ALaceration without foreign body, unspecified ankle, initial encounterBillable
S91.019DLaceration without foreign body, unspecified ankle, subsequent encounterBillable
S91.019SLaceration without foreign body, unspecified ankle, sequelaBillable
S91.02Laceration with foreign body of ankleCategory
S91.021Laceration with foreign body, right ankleCategory
S91.021ALaceration with foreign body, right ankle, 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.