M89.251 (Other disorders of bone development and growth, right femur) compared with M89.259 (Other disorders of bone development and growth, unspecified femur), from the official CMS tabular data. M89.251 and M89.259 code the same condition on opposite sides. MedCoder-derived
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. M89.251 and M89.259 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.
| M89.251Other disorders of bone development and growth, right femur | M89.259Other disorders of bone development and growth, unspecified femur | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | M00-M99 — Diseases of the musculoskeletal system and connective tissue | M00-M99 — Diseases of the musculoskeletal system and connective tissue |
| Definition | Other disorders of bone development and growth, right femur is a billable ICD-10-CM diagnosis code (M89.251). | Other disorders of bone development and growth, unspecified femur is a billable ICD-10-CM diagnosis code (M89.259). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources