ICD-10-CM 2027
ICD-10 code for dissecans osteochondritis
From the official ICD-10-CM alphabetic index entry “Osteochondritis › dissecans”. Page updated September 29, 2026.
About coding dissecans osteochondritis
The ICD-10-CM code for dissecans osteochondritis is M93.20 (Osteochondritis dissecans of unspecified site). The official index lists 10 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M93.20.
Within M93.2, choose M93.20 (of unspecified site) only when documentation doesn't support a more specific option: of shoulder (M93.21), of elbow (M93.22), of wrist (M93.23), of joints of hand (M93.24), of hip (M93.25), knee (M93.26), of ankle and joints of foot (M93.27), other site (M93.28) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 553 (Bone Diseases and Arthropathies with MCC, relative weight 1.2494) and DRG 554 (Bone Diseases and Arthropathies without MCC, relative weight 0.8331), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific dissecans osteochondritis codes (official index)
- ankle M93.27 — Osteochondritis dissecans of ankle and joints of foot
- elbow M93.22 — Osteochondritis dissecans of elbow
- foot M93.27 — Osteochondritis dissecans of ankle and joints of foot
- hand M93.24 — Osteochondritis dissecans of joints of hand
- hip M93.25 — Osteochondritis dissecans of hip
- knee M93.26 — Osteochondritis dissecans knee
- multiple sites M93.29 — Osteochondritis dissecans multiple sites
- shoulder joint M93.21 — Osteochondritis dissecans of shoulder
- specified site NEC M93.28 — Osteochondritis dissecans other site
- wrist M93.23 — Osteochondritis dissecans of wrist
Common questions about dissecans osteochondritis ICD-10 codes
What is the ICD-10 code for dissecans osteochondritis?
- M93.20 — Osteochondritis dissecans of unspecified site. More specific codes apply when the documentation supports them: M93.27, M93.22, M93.27, M93.24 and others below.
What is the ICD-10 code for ankle dissecans osteochondritis?
- M93.27 — Osteochondritis dissecans of ankle and joints of foot (header code; choose a more specific subcode).
What is the ICD-10 code for elbow dissecans osteochondritis?
- M93.22 — Osteochondritis dissecans of elbow (header code; choose a more specific subcode).
What is the ICD-10 code for foot dissecans osteochondritis?
- M93.27 — Osteochondritis dissecans of ankle and joints of foot (header code; choose a more specific subcode).
What is the ICD-10 code for hand dissecans osteochondritis?
- M93.24 — Osteochondritis dissecans of joints of hand (header code; choose a more specific subcode).
What is the ICD-10 code for hip dissecans osteochondritis?
- M93.25 — Osteochondritis dissecans of hip (header code; choose a more specific subcode).
What is the ICD-10 code for knee dissecans osteochondritis?
- M93.26 — Osteochondritis dissecans knee (header code; choose a more specific subcode).
Is M93.20 billable?
- Yes. M93.20 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M93.20 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M93.20 as a principal diagnosis.
Is M93.20 a CC or MCC?
- No. M93.20 is neither a CC nor an MCC under MS-DRG v44.0.