M05.0

Non-billable

Felty's syndrome

M05.0 is the ICD-10-CM code for Felty's syndrome. It is a non-billable category code — use a more specific child code such as M05.00 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Parent
M05
Subcodes
9
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

Includes

  • Rheumatoid arthritis with splenoadenomegaly and leukopenia

Frequently asked questions

What is ICD-10 code M05.0?
M05.0 is the ICD-10-CM code for "Felty's syndrome". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M05.0 a billable code?
No — M05.0 is a non-billable header code. Use a more specific child code (such as M05.00) for billing.
What are the subcodes of M05.0?
M05.0 has 9 more specific child codes, including M05.00, M05.01, M05.02.

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

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