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M05.64

⚠ Non-billable (Header)

Rheumatoid arthritis of hand with involvement of other organs and systems

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.

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Also Known As

Rheumatoid arthritis of metacarpus and phalanges with involvement of other organs and systems
✅ No additional coding notes for M05.64

Child Codes (3)

M05.641Rheumatoid arthritis of right hand with involvement of other organs and systemsM05.642Rheumatoid arthritis of left hand with involvement of other organs and systemsM05.649Rheumatoid arthritis of unspecified hand with involvement of other organs and systems

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Code Information

CodeM05.64
BillableNo — Header code
ParentM05.6
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)