M05.76 — Rheumatoid arthritis with rheumatoid factor of knee without organ or systems involvement
M05.76 is a non-billable header ICD-10-CM code for rheumatoid arthritis with rheumatoid factor of knee without organ or systems involvement. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 inherited from the categories above M05.76
These are not written on M05.76, but they bind it: a note on a category applies to every code beneath it. Billing M05.76 with anything listed here is a denial.
Other codes that can never be billed with M05.76
These codes carry an Excludes1 note pointing at M05.76. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M05.76 alone.
- R76.81Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis
Risk adjustment
M05.76 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code history
M05.76 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead M05.76
3 child codes. Green means billable.
- M05.761Rheumatoid arthritis with rheumatoid factor of right knee without organ or systems involvement
- M05.762Rheumatoid arthritis with rheumatoid factor of left knee without organ or systems involvement
- M05.769Rheumatoid arthritis with rheumatoid factor of unspecified knee without organ or systems involvement
Related codes at this level
Codes that share M05.7. If M05.76 is not quite right, the correct code is usually one of these.
- M05.70Rheumatoid arthritis with rheumatoid factor of unspecified site without organ or systems involvement
- M05.71Rheumatoid arthritis with rheumatoid factor of shoulder without organ or systems involvement
- M05.72Rheumatoid arthritis with rheumatoid factor of elbow without organ or systems involvement
- M05.73Rheumatoid arthritis with rheumatoid factor of wrist without organ or systems involvement
- M05.74Rheumatoid arthritis with rheumatoid factor of hand without organ or systems involvement
- M05.75Rheumatoid arthritis with rheumatoid factor of hip without organ or systems involvement
- M05.77Rheumatoid arthritis with rheumatoid factor of ankle and foot without organ or systems involvement
- 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
Questions about M05.76
- Is M05.76 a billable ICD-10-CM code?
- No. M05.76 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does M05.76 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Inflammatory polyarthropathies (M05-M14).
- What cannot be coded together with M05.76?
- M05.76 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above M05.76 (M05) and apply to it just the same.