M84.378Header code — not billable
Stress fracture, left toe(s)
- 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 M84.378?
M84.378 is an ICD-10-CM diagnosis code for Stress fracture, left toe(s).
Is M84.378 a billable code?
No. M84.378 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 M84.378 in?
M84.378 falls under Chapter 13: Diseases of the musculoskeletal system and connective tissue.
When did M84.378 become effective?
M84.378 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to M84.378?
M84.378 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.