M70.851 (Other soft tissue disorders related to use, overuse and pressure, right thigh) compared with M70.859 (Other soft tissue disorders related to use, overuse and pressure, unspecified thigh), from the official CMS tabular data. M70.851 and M70.859 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. M70.851 and M70.859 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.
| M70.851Other soft tissue disorders related to use, overuse and pressure, right thigh | M70.859Other soft tissue disorders related to use, overuse and pressure, unspecified thigh | |
|---|---|---|
| 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 soft tissue disorders related to use, overuse and pressure, right thigh is a billable ICD-10-CM diagnosis code (M70.851). | Other soft tissue disorders related to use, overuse and pressure, unspecified thigh is a billable ICD-10-CM diagnosis code (M70.859). |
| Includes | soft tissue disorders of occupational origin | soft tissue disorders of occupational origin |
| Use additional code | external cause code to identify activity causing disorder (Y93.-) | external cause code to identify activity causing disorder (Y93.-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources