M05.49 – Rheumatoid myopathy with rheumatoid arthritis of multiple sites
ICD-10-CM 2027 diagnosis code · Inflammatory polyarthropathies
ICD-10-CM code
M05.49
- Code
M05.49(claims format:M0549)- Description
- Rheumatoid myopathy with rheumatoid arthritis of multiple sites
- Short description
- Rheumatoid myopathy w rheumatoid arthritis of multiple sites
- Billable
- Yes – valid for HIPAA-covered transactions
- 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
- M05 › M05.4
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
M05 – Rheumatoid arthritis with rheumatoid factor
Index terms for M05.49
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in M05.4
- M05.40 – Rheumatoid myopathy with rheumatoid arthritis of unspecified siteBillable
- M05.41 – Rheumatoid myopathy with rheumatoid arthritis of shoulderHeader
- M05.42 – Rheumatoid myopathy with rheumatoid arthritis of elbowHeader
- M05.43 – Rheumatoid myopathy with rheumatoid arthritis of wristHeader
- M05.44 – Rheumatoid myopathy with rheumatoid arthritis of handHeader
- M05.45 – Rheumatoid myopathy with rheumatoid arthritis of hipHeader
- M05.46 – Rheumatoid myopathy with rheumatoid arthritis of kneeHeader
- M05.47 – Rheumatoid myopathy with rheumatoid arthritis of ankle and footHeader
Frequently asked questions
What is ICD-10 code M05.49?
M05.49 is the ICD-10-CM code for rheumatoid myopathy with rheumatoid arthritis of multiple sites, in the block M05-M14 (Inflammatory polyarthropathies).
Is M05.49 a billable code?
Yes. M05.49 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does M05.49 belong to?
It belongs to category M05 – Rheumatoid arthritis with rheumatoid factor.
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.