S89.399KBillable
Other physeal fracture of lower end of unspecified fibula, subsequent encounter for fracture with nonunion
Short description: Oth physl fx lower end unsp fibula, subs for fx w nonunion
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- S89
- Effective date
- October 1, 2026
Related codes in category S89
S89Other and unspecified injuries of lower legS89.0Physeal fracture of upper end of tibiaS89.00Unspecified physeal fracture of upper end of tibiaS89.001Unspecified physeal fracture of upper end of right tibiaS89.001AUnsp physeal fracture of upper end of right tibia, initYesS89.001DUnsp physl fx upper end of r tibia, subs for fx w routn healYesS89.001GUnsp physl fx upper end of r tibia, subs for fx w delay healYesS89.001KUnsp physeal fx upper end of r tibia, subs for fx w nonunionYesS89.001PUnsp physeal fx upper end of r tibia, subs for fx w malunionYesS89.001SUnsp physeal fracture of upper end of right tibia, sequelaYesS89.002Unspecified physeal fracture of upper end of left tibiaS89.002AUnsp physeal fracture of upper end of left tibia, initYes
Frequently asked questions
What is ICD-10 code S89.399K?
S89.399K is an ICD-10-CM diagnosis code for Other physeal fracture of lower end of unspecified fibula, subsequent encounter for fracture with nonunion.
Is S89.399K a billable code?
Yes. S89.399K is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is S89.399K in?
S89.399K falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did S89.399K become effective?
S89.399K has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to S89.399K?
S89.399K belongs to category S89, 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.