Arthritis and Arthropathy of Temporomandibular Joint

he following two new sub-subcategories were created at subcategory M26.6, Temporomandibular joint disorders, to distinguish arthritis from arthropathy of the temporomandibular joints. M26.64-, Arthritis of temporomandibular joint M26.65-, Arthropathy of temporomandibular joint Sixth characters at each of the new sub-subcategories identify laterality (i.e., right, left, bilateral and unspecified). ...

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Note:  The following article synopsis was NOT provided by the AHA. It was created by Find-A-Code/innoviHealth.

Article Overview

This article covers a focused ICD-10-CM update related to temporomandibular joint disorders. It explains the creation of new sub-subcategories to distinguish related joint conditions and notes that laterality is identified with sixth characters. The content is relevant to coding professionals, billing staff, and anyone tracking diagnosis coding updates for jaw joint disorders.

Why This Topic Matters

Changes to diagnosis code structure can affect code selection, reporting accuracy, and record consistency for temporomandibular joint conditions. Understanding the updated ICD-10-CM organization helps coders and related staff recognize where these diagnoses belong in the code set.

What You Will Learn

  • How the temporomandibular joint disorder category was updated
  • How laterality is represented within the new structure
  • Which broad diagnosis group the article addresses
  • How the change affects classification of related jaw joint conditions

Who Should Read This

  • Medical coders
  • Coding auditors
  • Billing staff
  • Clinical documentation staff
  • Revenue cycle professionals

Codes Discussed

Code Ranges Discussed

  • ICD-10-CM: M26.6

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