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M26.642

Billable

Arthritis of left temporomandibular joint

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Inflammation and degeneration of the joint on the left side of the jaw where it connects to the skull, causing pain and difficulty with jaw movement.

Coding Tips

  • •Confirm left side laterality is explicitly documented in the medical record
  • •Document any associated symptoms such as clicking, popping, or limited jaw opening for complete clinical picture

Code Hierarchy

└M26Dentofacial anomalies [including malocclusion]└M26.6Temporomandibular joint disorders└M26.64Arthritis of temporomandibular joint└M26.642Arthritis of left temporomandibular joint
└M26.642Arthritis of left temporomandibular joint

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