S99.121ABillable
Salter-Harris Type II physeal fracture of right metatarsal, initial encounter for closed fracture
Short description: Sltr-haris Type II physeal fx right metatarsal, init
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- S99
- Effective date
- October 1, 2026
Related codes in category S99
S99Other and unspecified injuries of ankle and footS99.0Physeal fracture of calcaneusS99.00Unspecified physeal fracture of calcaneusS99.001Unspecified physeal fracture of right calcaneusS99.001AUnspecified physeal fracture of right calcaneus, initYesS99.001BUnspecified physeal fracture of right calcaneus, 7thBYesS99.001DUnspecified physeal fracture of right calcaneus, 7thDYesS99.001GUnspecified physeal fracture of right calcaneus, 7thGYesS99.001KUnspecified physeal fracture of right calcaneus, 7thKYesS99.001PUnspecified physeal fracture of right calcaneus, 7thPYesS99.001SUnspecified physeal fracture of right calcaneus, sequelaYesS99.002Unspecified physeal fracture of left calcaneus
Frequently asked questions
What is ICD-10 code S99.121A?
S99.121A is an ICD-10-CM diagnosis code for Salter-Harris Type II physeal fracture of right metatarsal, initial encounter for closed fracture.
Is S99.121A a billable code?
Yes. S99.121A is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is S99.121A in?
S99.121A falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did S99.121A become effective?
S99.121A has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to S99.121A?
S99.121A belongs to category S99, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.