M12.55 – Traumatic arthropathy, hip
ICD-10-CM 2027 diagnosis code · Inflammatory polyarthropathies
- Code
M12.55(claims format:M1255)- Description
- Traumatic arthropathy, hip
- 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
- M05-M14 Inflammatory polyarthropathies
- Parent codes
- M12 › M12.5
Billable codes under M12.55
M12.55 is a header code and cannot be used on claims. Choose the most specific code:
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
M12 – Other and unspecified arthropathy
M12.5 – Traumatic arthropathy
- current injury-see Alphabetic Index
- post-traumatic osteoarthritis of first carpometacarpal joint (M18.2-M18.3)
- post-traumatic osteoarthritis of hip (M16.4-M16.5)
- post-traumatic osteoarthritis of knee (M17.2-M17.3)
- post-traumatic osteoarthritis NOS (M19.1-)
- post-traumatic osteoarthritis of other single joints (M19.1-)
Index terms for M12.55
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in M12.5
- M12.50 – Traumatic arthropathy, unspecified siteBillable
- M12.51 – Traumatic arthropathy, shoulderHeader
- M12.52 – Traumatic arthropathy, elbowHeader
- M12.53 – Traumatic arthropathy, wristHeader
- M12.54 – Traumatic arthropathy, handHeader
- M12.56 – Traumatic arthropathy, kneeHeader
- M12.57 – Traumatic arthropathy, ankle and footHeader
- M12.58 – Traumatic arthropathy, other specified siteBillable
- M12.59 – Traumatic arthropathy, multiple sitesBillable
Frequently asked questions
What is ICD-10 code M12.55?
M12.55 is the ICD-10-CM code for traumatic arthropathy, hip, in the block M05-M14 (Inflammatory polyarthropathies).
Is M12.55 a billable code?
No. M12.55 is a header code with more specific child codes; report one of the billable codes listed above.
What category does M12.55 belong to?
It belongs to category M12 – Other and unspecified arthropathy.
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.