M26.649Billable
Arthritis of unspecified temporomandibular joint
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue
- Category
- M26
- Effective date
- October 1, 2026
Related codes in category M26
M26Dentofacial anomalies [including malocclusion]M26.0Major anomalies of jaw sizeM26.00Unspecified anomaly of jaw sizeYesM26.01Maxillary hyperplasiaYesM26.02Maxillary hypoplasiaYesM26.03Mandibular hyperplasiaYesM26.04Mandibular hypoplasiaYesM26.05MacrogeniaYesM26.06MicrogeniaYesM26.07Excessive tuberosity of jawYesM26.09Other specified anomalies of jaw sizeYesM26.1Anomalies of jaw-cranial base relationship
Frequently asked questions
What is ICD-10 code M26.649?
M26.649 is an ICD-10-CM diagnosis code for Arthritis of unspecified temporomandibular joint.
Is M26.649 a billable code?
Yes. M26.649 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is M26.649 in?
M26.649 falls under Chapter 13: Diseases of the musculoskeletal system and connective tissue.
When did M26.649 become effective?
M26.649 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to M26.649?
M26.649 belongs to category M26, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.