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ICD-10-CM · FY 2026 APRIL UPDATE

S99

Other and unspecified injuries of ankle and foot

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
S99.0Physeal fracture of calcaneusCategory
S99.00Unspecified physeal fracture of calcaneusCategory
S99.001Unspecified physeal fracture of right calcaneusCategory
S99.001AUnspecified physeal fracture of right calcaneus, initial encounter for closed fractureBillable
S99.001BUnspecified physeal fracture of right calcaneus, initial encounter for open fractureBillable
S99.001DUnspecified physeal fracture of right calcaneus, subsequent encounter for fracture with routine healingBillable
S99.001GUnspecified physeal fracture of right calcaneus, subsequent encounter for fracture with delayed healingBillable
S99.001KUnspecified physeal fracture of right calcaneus, subsequent encounter for fracture with nonunionBillable
S99.001PUnspecified physeal fracture of right calcaneus, subsequent encounter for fracture with malunionBillable
S99.001SUnspecified physeal fracture of right calcaneus, sequelaBillable
S99.002Unspecified physeal fracture of left calcaneusCategory
S99.002AUnspecified physeal fracture of left calcaneus, initial encounter for closed fractureBillable
S99.002BUnspecified physeal fracture of left calcaneus, initial encounter for open fractureBillable
S99.002DUnspecified physeal fracture of left calcaneus, subsequent encounter for fracture with routine healingBillable
S99.002GUnspecified physeal fracture of left calcaneus, subsequent encounter for fracture with delayed healingBillable
S99.002KUnspecified physeal fracture of left calcaneus, subsequent encounter for fracture with nonunionBillable
S99.002PUnspecified physeal fracture of left calcaneus, subsequent encounter for fracture with malunionBillable
S99.002SUnspecified physeal fracture of left calcaneus, sequelaBillable
S99.009Unspecified physeal fracture of unspecified calcaneusCategory
S99.009AUnspecified physeal fracture of unspecified calcaneus, initial encounter for closed fractureBillable
S99.009BUnspecified physeal fracture of unspecified calcaneus, initial encounter for open fractureBillable
S99.009DUnspecified physeal fracture of unspecified calcaneus, subsequent encounter for fracture with routine healingBillable
S99.009GUnspecified physeal fracture of unspecified calcaneus, subsequent encounter for fracture with delayed healingBillable
S99.009KUnspecified physeal fracture of unspecified calcaneus, subsequent encounter for fracture with nonunionBillable
S99.009PUnspecified physeal fracture of unspecified calcaneus, subsequent encounter for fracture with malunionBillable
S99.009SUnspecified physeal fracture of unspecified calcaneus, sequelaBillable
S99.01Salter-Harris Type I physeal fracture of calcaneusCategory
S99.011Salter-Harris Type I physeal fracture of right calcaneusCategory
S99.011ASalter-Harris Type I physeal fracture of right calcaneus, initial encounter for closed fractureBillable
S99.011BSalter-Harris Type I physeal fracture of right calcaneus, initial encounter for open fractureBillable

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.