2021 ICD-10-CM Code M26.602

Left temporomandibular joint disorder, unspecified

Version 2021
Billable Code
Unspecified Code

Valid for Submission

M26.602 is a billable diagnosis code used to specify a medical diagnosis of left temporomandibular joint disorder, unspecified. The code M26.602 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

Unspecified diagnosis codes like M26.602 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

ICD-10:M26.602
Short Description:Left temporomandibular joint disorder, unspecified
Long Description:Left temporomandibular joint disorder, unspecified

Code Classification

Replacement Code

M26602 replaces the following previously assigned ICD-10 code(s):

Convert M26.602 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code M26.602 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

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

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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Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018