M89.779Billable
Major osseous defect, unspecified ankle and foot
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue
- Category
- M89
- Effective date
- October 1, 2026
Related codes in category M89
M89Other disorders of boneM89.0AlgoneurodystrophyM89.00Algoneurodystrophy, unspecified siteYesM89.01Algoneurodystrophy, shoulderM89.011Algoneurodystrophy, right shoulderYesM89.012Algoneurodystrophy, left shoulderYesM89.019Algoneurodystrophy, unspecified shoulderYesM89.02Algoneurodystrophy, upper armM89.021Algoneurodystrophy, right upper armYesM89.022Algoneurodystrophy, left upper armYesM89.029Algoneurodystrophy, unspecified upper armYesM89.03Algoneurodystrophy, forearm
Frequently asked questions
What is ICD-10 code M89.779?
M89.779 is an ICD-10-CM diagnosis code for Major osseous defect, unspecified ankle and foot.
Is M89.779 a billable code?
Yes. M89.779 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is M89.779 in?
M89.779 falls under Chapter 13: Diseases of the musculoskeletal system and connective tissue.
When did M89.779 become effective?
M89.779 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to M89.779?
M89.779 belongs to category M89, 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.