M67.921 (Unspecified disorder of synovium and tendon, right upper arm) compared with M67.922 (Unspecified disorder of synovium and tendon, left upper arm), from the official CMS tabular data. M67.921 and M67.922 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. M67.921 and M67.922 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.
| M67.921Unspecified disorder of synovium and tendon, right upper arm | M67.922Unspecified disorder of synovium and tendon, left upper arm | |
|---|---|---|
| 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 | Unspecified disorder of synovium and tendon, right upper arm is a billable ICD-10-CM diagnosis code (M67.921). | Unspecified disorder of synovium and tendon, left upper arm is a billable ICD-10-CM diagnosis code (M67.922). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources