Get started free

M05.64

Non-billable

Rheumatoid arthritis of hand with involvement of other organs and systems

M05.64 is the ICD-10-CM code for Rheumatoid arthritis of hand with involvement of other organs and systems. It is a non-billable category code — use a more specific child code such as M05.641 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Parent
M05.6
Subcodes
3
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

Includes

  • •Rheumatoid arthritis of metacarpus and phalanges with involvement of other organs and systems

Frequently asked questions

What is ICD-10 code M05.64?
M05.64 is the ICD-10-CM code for "Rheumatoid arthritis of hand with involvement of other organs and systems". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M05.64 a billable code?
No — M05.64 is a non-billable header code. Use a more specific child code (such as M05.641) for billing.
What are the subcodes of M05.64?
M05.64 has 3 more specific child codes, including M05.641, M05.642, M05.649.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

Look up another ICD-10 code or condition

Powered by Eleplan

Free ICD-10 lookup is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, with Ellie, your AI care assistant, on top of it. Free to start.

Get started freeSee how Eleplan works →