M05.70
Billable codeRheumatoid arthritis with rheumatoid factor of unspecified site without organ or systems involvement
The ICD-10 code for rheumatoid arthritis with rheumatoid factor of unspecified site without organ or systems involvement is M05.70.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- M05.71Rheumatoid arthritis with rheumatoid factor of shoulder without organ or systems involvementnon-billable header
- M05.72Rheumatoid arthritis with rheumatoid factor of elbow without organ or systems involvementnon-billable header
- M05.73Rheumatoid arthritis with rheumatoid factor of wrist without organ or systems involvementnon-billable header
- M05.74Rheumatoid arthritis with rheumatoid factor of hand without organ or systems involvementnon-billable header
- M05.75Rheumatoid arthritis with rheumatoid factor of hip without organ or systems involvementnon-billable header
- M05.76Rheumatoid arthritis with rheumatoid factor of knee without organ or systems involvementnon-billable header
- M05.77Rheumatoid arthritis with rheumatoid factor of ankle and foot without organ or systems involvementnon-billable header
- M05.79Rheumatoid arthritis with rheumatoid factor of multiple sites without organ or systems involvement
- M05.7ARheumatoid arthritis with rheumatoid factor of other specified site without organ or systems involvement
- M05.70Rheumatoid arthritis with rheumatoid factor of unspecified site without organ or systems involvement
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 7140Approximate match
Associated MS-DRGs
M05.70 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.