ICD-10-CM 2027 diagnosis code
M93.9Osteochondropathy, unspecified
M93.9 is a header code, so it can't be reported by itself. Choose one of the 10 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About M93.9
M93.9 is the ICD-10-CM diagnosis code for osteochondropathy, unspecified. It belongs to category M93 (other osteochondropathies), block M91-M94 (Chondropathies) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is a header code, so it can't be reported by itself; one of its 10 subcodes must be used instead.
Within M93, choose M93.9 (Osteochondropathy, unspecified) only when documentation doesn't support a more specific option: slipped upper femoral epiphysis (nontraumatic) (M93.0), Kienbock's disease of adults (M93.1), Osteochondritis dissecans (M93.2) and other specified osteochondropathies (M93.8).
To report this condition, pick the subcode that matches the documentation: M93.90 (of unspecified site), M93.91 (of shoulder), M93.92 (of upper arm), M93.93 (of forearm), M93.94 (of hand), M93.95 (of thigh), M93.96 (lower leg), M93.97 (of ankle and foot) and 2 more.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under M93.9
- M93.90Osteochondropathy, unspecified of unspecified siteBillable
- M93.91Osteochondropathy, unspecified of shoulder
- M93.92Osteochondropathy, unspecified of upper arm
- M93.93Osteochondropathy, unspecified of forearm
- M93.94Osteochondropathy, unspecified of hand
- M93.95Osteochondropathy, unspecified of thigh
- M93.96Osteochondropathy, unspecified lower leg
- M93.97Osteochondropathy, unspecified of ankle and foot
- M93.98Osteochondropathy, unspecified otherBillable
- M93.99Osteochondropathy, unspecified multiple sitesBillable
Coding notes
- Apophysitis NOS
- Epiphysitis NOS
- Osteochondritis NOS
- Osteochondrosis NOS
Notes that apply from higher levels
Instructions written at a parent level also apply to M93.9.
› From M93 Other osteochondropathies
- osteochondrosis of spine (M42.-)
Broader instructions also apply from M91-M94 Chondropathies and Chapter 13: Diseases of the musculoskeletal system and connective tissue.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about M93.9
Is M93.9 billable?
- No. M93.9 is a header code. Report one of its more specific subcodes instead.