2021 ICD-10-CM Diagnosis Code M26.642

Arthritis of left temporomandibular joint

    2021 - New Code Billable/Specific Code
  • M26.642 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • ICD-10-CM M26.642 is a new 2021 ICD-10-CM code that became effective on October 1, 2020.
  • This is the American ICD-10-CM version of M26.642 - other international versions of ICD-10 M26.642 may differ.
The following code(s) above M26.642 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to M26.642:
  • M00-M99
    2021 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    Note
    • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
    Type 2 Excludes
    • arthropathic psoriasis (L40.5-)
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • compartment syndrome (traumatic) (T79.A-)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the musculoskeletal system and connective tissue
  • M26-M27
    2021 ICD-10-CM Range M26-M27

    Dentofacial anomalies [including malocclusion] and other disorders of jaw

    Type 1 Excludes
    • hemifacial atrophy or hypertrophy (Q67.4)
    • unilateral condylar hyperplasia or hypoplasia (M27.8)
    Dentofacial anomalies [including malocclusion] and other disorders of jaw
  • M26.6
    ICD-10-CM Diagnosis Code M26.6

    Temporomandibular joint disorders

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • current temporomandibular joint dislocation (S03.0)
    • current temporomandibular joint sprain (S03.4)
    Temporomandibular joint disorders
ICD-10-CM M26.642 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 011 Tracheostomy for face, mouth and neck diagnoses or laryngectomy with mcc
  • 012 Tracheostomy for face, mouth and neck diagnoses or laryngectomy with cc
  • 013 Tracheostomy for face, mouth and neck diagnoses or laryngectomy without cc/mcc
  • 157 Dental and oral diseases with mcc
  • 158 Dental and oral diseases with cc
  • 159 Dental and oral diseases without cc/mcc
Code History
  • 2021 (effective 10/1/2020): New code
ICD-10-CM Codes Adjacent To M26.642
M26.622 Arthralgia of left temporomandibular joint
M26.623 Arthralgia of bilateral temporomandibular joint
M26.629 …… unspecified side
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 …… unspecified side
M26.64 Arthritis of temporomandibular joint
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
M26.651 Arthropathy of right temporomandibular joint
M26.652 Arthropathy of left temporomandibular joint
M26.653 Arthropathy of bilateral temporomandibular joint
M26.659 Arthropathy of unspecified temporomandibular joint
M26.69 Other specified disorders of temporomandibular joint
M26.7 Dental alveolar anomalies
M26.70 Unspecified alveolar anomaly

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.