S99.921ABillable
Unspecified injury of right foot, initial encounter
- 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 S99.921A?
S99.921A is an ICD-10-CM diagnosis code for Unspecified injury of right foot, initial encounter.
Is S99.921A a billable code?
Yes. S99.921A is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is S99.921A in?
S99.921A falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did S99.921A become effective?
S99.921A has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to S99.921A?
S99.921A 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.