ICD-10 Diagnosis Code M26.639

Articular disc disorder of TMJ joint, unspecified side

Diagnosis Code M26.639

ICD-10: M26.639
Short Description: Articular disc disorder of TMJ joint, unspecified side
Long Description: Articular disc disorder of temporomandibular joint, unspecified side
This is the 2017 version of the ICD-10-CM diagnosis code M26.639

Valid for Submission
The code M26.639 is valid for submission for HIPAA-covered transactions.

New 2017 ICD-10 Code
M26.639 is new to ICD-10 code set for the FY 2017, effective October 1, 2016.

Code Classification
  • Diseases of the musculoskeletal system and connective tissue (M00–M99)
    • Dentofacial anomalies [including malocclusion] and other disorders of jaw (M26-M27)
      • Dentofacial anomalies [including malocclusion] (M26)

Information for Patients


Temporomandibular Joint Dysfunction

Also called: TMD, TMJ syndrome, Temporomandibular disorders

The temporomandibular joint (TMJ) connects your jaw to the side of your head. When it works well, it enables you to talk, chew, and yawn. For people with TMJ dysfunction, problems with the joint and muscles around it may cause

  • Pain that travels through the face, jaw, or neck
  • Stiff jaw muscles
  • Limited movement or locking of the jaw
  • Painful clicking or popping in the jaw
  • A change in the way the upper and lower teeth fit together

Jaw pain may go away with little or no treatment. Treatment may include simple things you can do yourself, such as eating soft foods or applying ice packs. It may also include pain medicines or devices to insert in your mouth. In rare cases, you might need surgery.

NIH: National Institute of Dental and Craniofacial Research

  • TMJ disorders (Medical Encyclopedia)
  • TMJ Disorders - NIH (National Institute of Dental and Craniofacial Research)


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