M26.653 (Arthropathy of bilateral temporomandibular joint) compared with M26.659 (Arthropathy of unspecified temporomandibular joint), from the official CMS tabular data. M26.653 and M26.659 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. M26.653 and M26.659 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.
| M26.653Arthropathy of bilateral temporomandibular joint | M26.659Arthropathy of unspecified temporomandibular joint | |
|---|---|---|
| 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 | Arthropathy of bilateral temporomandibular joint is a billable ICD-10-CM diagnosis code (M26.653). | Arthropathy of unspecified temporomandibular joint is a billable ICD-10-CM diagnosis code (M26.659). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources