M11.861Billable
Other specified crystal arthropathies, right knee
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue
- Category
- M11
- Effective date
- October 1, 2026
Related codes in category M11
M11Other crystal arthropathiesM11.0Hydroxyapatite deposition diseaseM11.00Hydroxyapatite deposition disease, unspecified siteYesM11.01Hydroxyapatite deposition disease, shoulderM11.011Hydroxyapatite deposition disease, right shoulderYesM11.012Hydroxyapatite deposition disease, left shoulderYesM11.019Hydroxyapatite deposition disease, unspecified shoulderYesM11.02Hydroxyapatite deposition disease, elbowM11.021Hydroxyapatite deposition disease, right elbowYesM11.022Hydroxyapatite deposition disease, left elbowYesM11.029Hydroxyapatite deposition disease, unspecified elbowYesM11.03Hydroxyapatite deposition disease, wrist
Frequently asked questions
What is ICD-10 code M11.861?
M11.861 is an ICD-10-CM diagnosis code for Other specified crystal arthropathies, right knee.
Is M11.861 a billable code?
Yes. M11.861 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is M11.861 in?
M11.861 falls under Chapter 13: Diseases of the musculoskeletal system and connective tissue.
When did M11.861 become effective?
M11.861 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to M11.861?
M11.861 belongs to category M11, 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.