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ICD-10-CM · FY 2026 APRIL UPDATE

S93.4

Sprain of ankle

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
S93.40Sprain of unspecified ligament of ankleCategory
S93.401Sprain of unspecified ligament of right ankleCategory
S93.401ASprain of unspecified ligament of right ankle, initial encounterBillable
S93.401DSprain of unspecified ligament of right ankle, subsequent encounterBillable
S93.401SSprain of unspecified ligament of right ankle, sequelaBillable
S93.402Sprain of unspecified ligament of left ankleCategory
S93.402ASprain of unspecified ligament of left ankle, initial encounterBillable
S93.402DSprain of unspecified ligament of left ankle, subsequent encounterBillable
S93.402SSprain of unspecified ligament of left ankle, sequelaBillable
S93.409Sprain of unspecified ligament of unspecified ankleCategory
S93.409ASprain of unspecified ligament of unspecified ankle, initial encounterBillable
S93.409DSprain of unspecified ligament of unspecified ankle, subsequent encounterBillable
S93.409SSprain of unspecified ligament of unspecified ankle, sequelaBillable
S93.41Sprain of calcaneofibular ligamentCategory
S93.411Sprain of calcaneofibular ligament of right ankleCategory
S93.411ASprain of calcaneofibular ligament of right ankle, initial encounterBillable
S93.411DSprain of calcaneofibular ligament of right ankle, subsequent encounterBillable
S93.411SSprain of calcaneofibular ligament of right ankle, sequelaBillable
S93.412Sprain of calcaneofibular ligament of left ankleCategory
S93.412ASprain of calcaneofibular ligament of left ankle, initial encounterBillable
S93.412DSprain of calcaneofibular ligament of left ankle, subsequent encounterBillable
S93.412SSprain of calcaneofibular ligament of left ankle, sequelaBillable
S93.419Sprain of calcaneofibular ligament of unspecified ankleCategory
S93.419ASprain of calcaneofibular ligament of unspecified ankle, initial encounterBillable
S93.419DSprain of calcaneofibular ligament of unspecified ankle, subsequent encounterBillable
S93.419SSprain of calcaneofibular ligament of unspecified ankle, sequelaBillable
S93.42Sprain of deltoid ligamentCategory
S93.421Sprain of deltoid ligament of right ankleCategory
S93.421ASprain of deltoid ligament of right ankle, initial encounterBillable
S93.421DSprain of deltoid ligament of right ankle, subsequent 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.