M05.4
⚠ Non-billable (Header)Rheumatoid myopathy with rheumatoid arthritis
Diseases of the musculoskeletal system and connective tissue (M00-M99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
❌ Excludes1
inherited from M05Rules from parent category M05: Rheumatoid arthritis with rheumatoid factor
- • rheumatic fever (I00)
- • juvenile rheumatoid arthritis (M08.-)
- • rheumatoid arthritis of spine (M45.-)
Child Codes (9)
M05.40Rheumatoid myopathy with rheumatoid arthritis of unspecified siteM05.41Rheumatoid myopathy with rheumatoid arthritis of shoulderM05.42Rheumatoid myopathy with rheumatoid arthritis of elbowM05.43Rheumatoid myopathy with rheumatoid arthritis of wristM05.44Rheumatoid myopathy with rheumatoid arthritis of handM05.45Rheumatoid myopathy with rheumatoid arthritis of hipM05.46Rheumatoid myopathy with rheumatoid arthritis of kneeM05.47Rheumatoid myopathy with rheumatoid arthritis of ankle and footM05.49Rheumatoid myopathy with rheumatoid arthritis of multiple sites
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CodeM05.4
BillableNo — Header code
ParentM05
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes13 rule(s)
Excludes20 note(s)
Child codes9
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)