M06.061 (Rheumatoid arthritis without rheumatoid factor, right knee) compared with M06.062 (Rheumatoid arthritis without rheumatoid factor, left knee), from the official CMS tabular data. M06.061 and M06.062 code the same condition on opposite sides.
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. M06.061 and M06.062 name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| M06.061Rheumatoid arthritis without rheumatoid factor, right knee | M06.062Rheumatoid arthritis without rheumatoid factor, left knee | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99) | M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99) |
| Definition | Rheumatoid arthritis without rheumatoid factor, right knee is a billable ICD-10-CM diagnosis code (M06.061). | Rheumatoid arthritis without rheumatoid factor, left knee is a billable ICD-10-CM diagnosis code (M06.062). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources