M42 – Spinal osteochondrosis
ICD-10-CM 2027 diagnosis code · Deforming dorsopathies
ICD-10-CM code
M42
- Code
M42(claims format:M42)- Description
- Spinal osteochondrosis
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
- Block
- M40-M43 Deforming dorsopathies
Billable codes under M42
M42 is a header code and cannot be used on claims. Choose the most specific code:
- M42.0 – Juvenile osteochondrosis of spineHeader (more codes below)
- M42.1 – Adult osteochondrosis of spineHeader (more codes below)
- M42.9 – Spinal osteochondrosis, unspecifiedBillable
Frequently asked questions
What is ICD-10 code M42?
M42 is the ICD-10-CM code for spinal osteochondrosis, in the block M40-M43 (Deforming dorsopathies).
Is M42 a billable code?
No. M42 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.