M87.173Billable
Osteonecrosis due to drugs, unspecified ankle
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue
- Category
- M87
- Effective date
- October 1, 2026
Related codes in category M87
M87OsteonecrosisM87.0Idiopathic aseptic necrosis of boneM87.00Idiopathic aseptic necrosis of unspecified boneYesM87.01Idiopathic aseptic necrosis of shoulderM87.011Idiopathic aseptic necrosis of right shoulderYesM87.012Idiopathic aseptic necrosis of left shoulderYesM87.019Idiopathic aseptic necrosis of unspecified shoulderYesM87.02Idiopathic aseptic necrosis of humerusM87.021Idiopathic aseptic necrosis of right humerusYesM87.022Idiopathic aseptic necrosis of left humerusYesM87.029Idiopathic aseptic necrosis of unspecified humerusYesM87.03Idiopathic aseptic necrosis of radius, ulna and carpus
Frequently asked questions
What is ICD-10 code M87.173?
M87.173 is an ICD-10-CM diagnosis code for Osteonecrosis due to drugs, unspecified ankle.
Is M87.173 a billable code?
Yes. M87.173 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is M87.173 in?
M87.173 falls under Chapter 13: Diseases of the musculoskeletal system and connective tissue.
When did M87.173 become effective?
M87.173 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to M87.173?
M87.173 belongs to category M87, 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.