ICD-10-CM Code M26.613

Adhesions and ankylosis of bilateral temporomandibular joint

Version 2020 Billable Code

Valid for Submission

M26.613 is a billable code used to specify a medical diagnosis of adhesions and ankylosis of bilateral temporomandibular joint. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code M26.613 might also be used to specify conditions or terms like ankylosis of bilateral temporomandibular joints or ankylosis of left temporomandibular joint or ankylosis of right temporomandibular joint or ankylosis of temporomandibular joint.

Short Description:Adhesions and ankylosis of bilateral temporomandibular joint
Long Description:Adhesions and ankylosis of bilateral temporomandibular joint


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Ankylosis of bilateral temporomandibular joints
  • Ankylosis of left temporomandibular joint
  • Ankylosis of right temporomandibular joint
  • Ankylosis of temporomandibular joint

Replacement Code

M26613 replaces the following previously assigned ICD-10 code(s):

  • M26.61 - Adhesions and ankylosis of temporomandibular joint

Convert M26.613 to ICD-9

  • 524.61 - Adhesns/ankylosis - TMJ (Approximate Flag)

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)

Code History

  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

Temporomandibular Joint Dysfunction

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 very rare cases, you might need surgery.

NIH: National Institute of Dental and Craniofacial Research

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