M05.852 (Other rheumatoid arthritis with rheumatoid factor of left hip) compared with M05.859 (Other rheumatoid arthritis with rheumatoid factor of unspecified hip), from the official CMS tabular data. M05.852 and M05.859 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. M05.852 and M05.859 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.
| M05.852Other rheumatoid arthritis with rheumatoid factor of left hip | M05.859Other rheumatoid arthritis with rheumatoid factor of unspecified hip | |
|---|---|---|
| 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 | Other rheumatoid arthritis with rheumatoid factor of left hip is a billable ICD-10-CM diagnosis code (M05.852). | Other rheumatoid arthritis with rheumatoid factor of unspecified hip is a billable ICD-10-CM diagnosis code (M05.859). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources