2024 ICD-10-CM Diagnosis Code M26.659
Arthropathy of unspecified temporomandibular joint
- ICD-10-CM Code:
- M26.659
- ICD-10 Code for:
- Arthropathy of unspecified temporomandibular joint
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Not chronic
- Code Navigator:
M26.659 is a billable diagnosis code used to specify a medical diagnosis of arthropathy of unspecified temporomandibular joint. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.
Unspecified diagnosis codes like M26.659 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.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Derangement of temporomandibular joint
- Intermittent locking of temporomandibular joint
- Jaw claudication
- Locking of joint
- Mandibular coronoid process impingement
- Recurrent dislocation of temporomandibular joint
- Recurrent subluxation of temporomandibular joint
- Temporomandibular dysplasia
- Temporomandibular joint capsulitis
- Temporomandibular joint crepitus
- Temporomandibular joint crepitus on opening of jaw
- Temporomandibular joint deformity
- Temporomandibular joint dislocation - non-traumatic
- Temporomandibular joint effusion
- Temporomandibular joint hypermobility
- Temporomandibular joint laxity
- Temporomandibular joint locking
- Temporomandibular joint popping on opening
- Temporomandibular joint unstable
- Temporomandibular subluxation
Clinical Classification
| Clinical Category | CCSR Category Code | Inpatient Default CCSR | Outpatient Default CCSR |
|---|---|---|---|
| Any dental condition including traumatic injury | DEN001 | N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis. | N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis. |
| Disorders of jaw | MUS029 | Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis. | Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis. |
| Nontraumatic dental conditions | DEN002 | N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis. | N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis. |
Replacement Code
M26659 replaces the following previously assigned ICD-10-CM code(s):
- M26.69 - Other specified disorders of temporomandibular joint
Patient Education
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
[Learn More in MedlinePlus]
Code History
- FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
- FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- FY 2021 - Code Added, effective from 10/1/2020 through 9/30/2021
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.