Osteoarthritis (M15-M19) ICD-10-CM
The M15–M19 section covers osteoarthritis with 130 ICD-10-CM diagnosis codes, of which 98 are billable in fiscal year 2027. The section is organized into the 5 code ranges listed below.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- osteoarthritis of spine M47
Code Ranges in This Section 5 ranges · 130 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the M15–M19 Code Range
Osteoarthritis is a degenerative joint disease. These codes describe it in multiple joints, in specific joints, or at an unspecified site.
M15 groups forms affecting multiple joints, including generalized, secondary multiple, and erosive osteoarthritis. M16 covers the hip, M17 the knee, and M18 the joint at the base of the thumb. These categories distinguish one side from both sides and separate primary, post-traumatic, and other secondary osteoarthritis. The hip category also identifies osteoarthritis resulting from hip dysplasia. M19 covers other joints and cases without a specified site.
Questions About This Page
How many codes are in the M15-M19 range?
The M15-M19 range contains 130 ICD-10-CM diagnosis codes in FY 2027. 98 of them are billable, and the rest are category headers that organize the section.
What conditions does M15-M19 cover?
The range covers osteoarthritis. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
