M84.631Header code — not billable
Pathological fracture in other disease, right ulna
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue
- Category
- M84
- Effective date
- October 1, 2026
Related codes in category M84
M84Disorder of continuity of boneM84.3Stress fractureM84.30Stress fracture, unspecified siteM84.30XAStress fracture, unspecified site, init encntr for fractureYesM84.30XDStress fracture, unsp site, subs for fx w routn healYesM84.30XGStress fracture, unsp site, subs for fx w delay healYesM84.30XKStress fracture, unsp site, subs for fx w nonunionYesM84.30XPStress fracture, unsp site, subs for fx w malunionYesM84.30XSStress fracture, unspecified site, sequelaYesM84.31Stress fracture, shoulderM84.311Stress fracture, right shoulderM84.311AStress fracture, right shoulder, init encntr for fractureYes
Frequently asked questions
What is ICD-10 code M84.631?
M84.631 is an ICD-10-CM diagnosis code for Pathological fracture in other disease, right ulna.
Is M84.631 a billable code?
No. M84.631 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is M84.631 in?
M84.631 falls under Chapter 13: Diseases of the musculoskeletal system and connective tissue.
When did M84.631 become effective?
M84.631 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to M84.631?
M84.631 belongs to category M84, 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.