M05
Header — not billableRheumatoid arthritis with rheumatoid factor
The ICD-10 code for rheumatoid arthritis with rheumatoid factor is M05.
M05 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 11 more specific codes below.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under M05
- M05.0Felty's syndromenon-billable header
- M05.1Rheumatoid lung disease with rheumatoid arthritisnon-billable header
- M05.2Rheumatoid vasculitis with rheumatoid arthritisnon-billable header
- M05.3Rheumatoid heart disease with rheumatoid arthritisnon-billable header
- M05.4Rheumatoid myopathy with rheumatoid arthritisnon-billable header
- M05.5Rheumatoid polyneuropathy with rheumatoid arthritisnon-billable header
- M05.6Rheumatoid arthritis with involvement of other organs and systemsnon-billable header
- M05.7Rheumatoid arthritis with rheumatoid factor without organ or systems involvementnon-billable header
- M05.8Other rheumatoid arthritis with rheumatoid factornon-billable header
- M05.9Rheumatoid arthritis with rheumatoid factor, unspecified
- M05.AAbnormal rheumatoid factor and anti-citrullinated protein antibody with rheumatoid arthritis
Related codes in this category
- M06Other rheumatoid arthritisnon-billable header
- M07Enteropathic arthropathiesnon-billable header
- M08Juvenile arthritisnon-billable header
- M10Goutnon-billable header
- M11Other crystal arthropathiesnon-billable header
- M12Other and unspecified arthropathynon-billable header
- M13Other arthritisnon-billable header
- M14Arthropathies in other diseases classified elsewherenon-billable header
- M1AChronic goutnon-billable header
- M05Rheumatoid arthritis with rheumatoid factornon-billable header