S99.1 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Physeal fracture of metatarsal.
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The appropriate 7th character is to be added to each code from subcategories S99.1
A: initial encounter for closed fracture
B: initial encounter for open fracture
D: subsequent encounter for fracture with routine healing
G: subsequent encounter for fracture with delayed healing
K: subsequent encounter for fracture with nonunion
P: subsequent encounter for fracture with malunion
S: sequela
Unspecified physeal fracture of metatarsal
Salter-Harris Type I physeal fracture of metatarsal
Salter-Harris Type II physeal fracture of metatarsal
Salter-Harris Type III physeal fracture of metatarsal
Salter-Harris Type IV physeal fracture of metatarsal
Other physeal fracture of metatarsal
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