S99.00Unspecified physeal fracture of calcaneus

S99.00 is the ICD-10-CM diagnosis code for unspecified physeal fracture of calcaneus. It belongs to category S99 (other and unspecified injuries of ankle and foot), block S90-S99 (injuries to the ankle and foot) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within S99.0, choose S99.00 (Unspecified physeal fracture of calcaneus) only when documentation doesn't support a more specific option: Salter-Harris Type I physeal fracture of calcaneus (S99.01), Salter-Harris Type II physeal fracture of calcaneus (S99.02), Salter-Harris Type III physeal fracture of calcaneus (S99.03), Salter-Harris Type IV physeal fracture of calcaneus (S99.04) and other physeal fracture of calcaneus (S99.09).

Codes in this range require a 7th character: A for initial encounter for closed fracture, B for initial encounter for open fracture, D for subsequent encounter for fracture with routine healing, G for subsequent encounter for fracture with delayed healing, K for subsequent encounter for fracture with nonunion, P for subsequent encounter for fracture with malunion and 1 more. Use placeholder "X" characters to fill any empty positions before the 7th character.

It was added in FY2017, effective October 1, 2016.