M26.601 (Right temporomandibular joint disorder, unspecified) compared with M26.602 (Left temporomandibular joint disorder, unspecified), from the official CMS tabular data. M26.601 and M26.602 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. M26.601 and M26.602 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.
| M26.601Right temporomandibular joint disorder, unspecified | M26.602Left temporomandibular joint disorder, unspecified | |
|---|---|---|
| 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 | Right temporomandibular joint disorder, unspecified is a billable ICD-10-CM diagnosis code (M26.601). | Left temporomandibular joint disorder, unspecified is a billable ICD-10-CM diagnosis code (M26.602). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources