Chondropathies (M91-M94) ICD-10-CM
The M91–M94 section covers chondropathies with 283 ICD-10-CM diagnosis codes, of which 212 are billable in fiscal year 2026. The section is organized into the 4 code ranges listed below.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- postprocedural chondropathies M96
Code Ranges in This Section 4 ranges · 283 codes
| Code Range | Title | Codes | Billable |
|---|---|---|---|
| M91 | Juvenile osteochondrosis of hip and pelvis (M91) | 26 | 19 |
| M92 | Other juvenile osteochondrosis (M92) | 65 | 48 |
| M93 | Other osteochondropathies (M93) | 139 | 105 |
| M94 | Other disorders of cartilage (M94) | 53 | 40 |
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the M91–M94 Code Range
ICD-10 codes M91-M94 cover a range of chondropathies, which are disorders affecting cartilage and related bone structures, primarily in juveniles and adults. These codes are used to specify conditions like juvenile osteochondrosis, other juvenile osteochondroses, various osteochondropathies, and other cartilage disorders including chondromalacia and chondrolysis.
This chapter includes detailed classifications such as M91 for juvenile osteochondrosis of the hip and pelvis with subcodes specifying conditions like Legg-Calve-Perthes disease and coxa plana. The M92 range addresses juvenile osteochondrosis affecting various upper and lower limb bones such as the humerus, radius, tibia, tarsus, and metatarsus, including well-known synonyms like Osgood-Schlatter disease and Kienbock disease. Codes in M93 cover other osteochondropathies like slipped upper femoral epiphysis and osteochondritis dissecans, with specific codes for affected anatomical sites and laterality. The final block, M94, addresses other cartilage disorders, including chondrocostal junction syndrome (Tietze's disease), relapsing polychondritis, chondromalacia affecting joints like the knee and shoulder, and chondrolysis with site-specific designations. Frequently used synonyms in these code groupings assist coders in linking clinical terms such as "Juvenile osteochondropathy," "Articular cartilage disorder," and "Separated epiphysis" to the correct ICD-10 codes for accurate diagnosis recording and billing.
Questions About This Page
How many codes are in the M91-M94 range?
The M91-M94 range contains 283 ICD-10-CM diagnosis codes in FY 2026. 212 of them are billable, and the rest are category headers that organize the section.
What conditions does M91-M94 cover?
The range covers chondropathies. 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 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
