M26.64 Arthritis of temporomandibular joint

Non-billable header with 4 child codes.

Applies from M26.6 Temporomandibular joint disorders

Excludes2 (not included here)

• current temporomandibular joint dislocation (S03.0)
• current temporomandibular joint sprain (S03.4)

Codes under M26.64

• M26.641 Arthritis of right temporomandibular joint
• M26.642 Arthritis of left temporomandibular joint
• M26.643 Arthritis of bilateral temporomandibular joint
• M26.649 Arthritis of unspecified temporomandibular joint

Code annotations containing back-references to M26.64

Back-references to M26.6

• Type 2 Excludes: M24 Other specific joint derangements ("temporomandibular joint disorders (M26.6-)")
• Type 2 Excludes: M25 Other joint disorder, not elsewhere classified ("temporomandibular joint disorder (M26.6-)")

Back-references to M26

• Type 2 Excludes: K08 Other disorders of teeth and supporting structures ("dentofacial anomalies [including malocclusion] (M26.-)")
• Type 2 Excludes: M95 Other acquired deformities of musculoskeletal system and connective tissue ("dentofacial anomalies [including malocclusion] (M26.-)")
• Type 1 Excludes: Q18 Other congenital malformations of face and neck ("dentofacial anomalies [including malocclusion] (M26.-)")
• Type 1 Excludes: Q38 Other congenital malformations of tongue, mouth and pharynx ("dentofacial anomalies (M26.-)")
• Type 1 Excludes: Q67.4 Other congenital deformities of skull, face and jaw ("dentofacial anomalies [including malocclusion] (M26.-)")
• Type 1 Excludes: Q75 Other congenital malformations of skull and face bones ("dentofacial anomalies [including malocclusion] (M26.-)")

Diagnosis Index entries for M26.64

• Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) › temporomandibular joint

Nearby codes

• M26.63 Articular disc disorder of temporomandibular joint
• M26.631 Articular disc disorder of right temporomandibular joint
• M26.632 Articular disc disorder of left temporomandibular joint
• M26.633 Articular disc disorder of bilateral temporomandibular joint
• M26.639 Articular disc disorder of temporomandibular joint, unspecified side
• M26.64 Arthritis of temporomandibular joint (this code)
• M26.641 Arthritis of right temporomandibular joint
• M26.642 Arthritis of left temporomandibular joint
• M26.643 Arthritis of bilateral temporomandibular joint
• M26.649 Arthritis of unspecified temporomandibular joint
• M26.65 Arthropathy of temporomandibular joint