S93.421ABillable
Sprain of deltoid ligament of right ankle, initial encounter
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- S93
- Effective date
- October 1, 2026
Related codes in category S93
S93Disloc & sprain of joints & ligaments at ankl, ft & toe levS93.0Subluxation and dislocation of ankle jointS93.01Subluxation of right ankle jointS93.01XASubluxation of right ankle joint, initial encounterYesS93.01XDSubluxation of right ankle joint, subsequent encounterYesS93.01XSSubluxation of right ankle joint, sequelaYesS93.02Subluxation of left ankle jointS93.02XASubluxation of left ankle joint, initial encounterYesS93.02XDSubluxation of left ankle joint, subsequent encounterYesS93.02XSSubluxation of left ankle joint, sequelaYesS93.03Subluxation of unspecified ankle jointS93.03XASubluxation of unspecified ankle joint, initial encounterYes
Frequently asked questions
What is ICD-10 code S93.421A?
S93.421A is an ICD-10-CM diagnosis code for Sprain of deltoid ligament of right ankle, initial encounter.
Is S93.421A a billable code?
Yes. S93.421A is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is S93.421A in?
S93.421A falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did S93.421A become effective?
S93.421A has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to S93.421A?
S93.421A belongs to category S93, 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.