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M26.611 vs M26.613

M26.611 (Adhesions and ankylosis of right temporomandibular joint) compared with M26.613 (Adhesions and ankylosis of bilateral temporomandibular joint), from the official CMS tabular data. M26.611 and M26.613 code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

M26.611
Right
Adhesions and ankylosis of right temporomandibular joint
M26.613
Bilateral
Adhesions and ankylosis of bilateral temporomandibular joint

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)

Can these codes be reported together?

Same condition, opposite side. M26.611 and M26.613 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.

Side by side

M26.611Adhesions and ankylosis of right temporomandibular jointM26.613Adhesions and ankylosis of bilateral temporomandibular joint
Billing statusBillableBillable
ClassificationM00-M99 — Diseases of the musculoskeletal system and connective tissueM00-M99 — Diseases of the musculoskeletal system and connective tissue
DefinitionAdhesions and ankylosis of right temporomandibular joint is a billable ICD-10-CM diagnosis code (M26.611).Adhesions and ankylosis of bilateral temporomandibular joint is a billable ICD-10-CM diagnosis code (M26.613).

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources