Billable / Specific Code
ICD-10-CM M26.659 is the diagnosis code for Arthropathy of unspecified temporomandibular joint. This code falls under the section "Dentofacial anomalies [including malocclusion] and other disorders of jaw" within Chapter 13 — Diseases of the musculoskeletal system and connective tissue (M00-M99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where M26.659 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, M26.659 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
M26.659 is the ICD-10-CM diagnosis code for "Arthropathy of unspecified temporomandibular joint". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of M26.659 is M26.65 ("Arthropathy of temporomandibular joint"). M26.659 provides a more specific classification within this category.
M26.659 is located in Section M26-M27 — "Dentofacial anomalies [including malocclusion] and other disorders of jaw" within Chapter 13 of the ICD-10-CM Tabular List.
Use M26.659 when the patients documented diagnosis matches "Arthropathy of unspecified temporomandibular joint" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Arthropathy of unspecified temporomandibular joint is M26.659.
Yes, M26.659 can be used as a primary diagnosis code since it is billable and specific.
M26.659 is in Chapter 13 of the ICD-10-CM Tabular List.
Yes, M26.659 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.