All ICD10 Codes
Chapter 13

M00–M99: Diseases of the Musculoskeletal System and Connective Tissue

Diseases of the Musculoskeletal System and Connective Tissue diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • 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)
All CodesBillable Only
Internal Codes
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  • M26.612—

    Adhesions and ankylosis of left temporomandibular joint

  • M26.613—

    Adhesions and ankylosis of bilateral temporomandibular joint

  • M26.619—

    Adhesions and ankylosis of temporomandibular joint, unspecified side

  • M26.62—

    Arthralgia of temporomandibular joint

  • M26.621—

    Arthralgia of right temporomandibular joint

  • M26.622—

    Arthralgia of left temporomandibular joint

  • M26.623—

    Arthralgia of bilateral temporomandibular joint

  • M26.629—

    Arthralgia of temporomandibular joint, 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—

    Articular disc disorder of temporomandibular joint, 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

  • M26.71—

    Alveolar maxillary hyperplasia

  • M26.72—

    Alveolar mandibular hyperplasia

  • M26.73—

    Alveolar maxillary hypoplasia

  • M26.74—

    Alveolar mandibular hypoplasia

  • M26.79—

    Other specified alveolar anomalies

  • M26.8—

    Other dentofacial anomalies

  • M26.81—

    Anterior soft tissue impingement

  • M26.82—

    Posterior soft tissue impingement

  • M26.89—

    Other dentofacial anomalies

  • M26.9—

    Dentofacial anomaly, unspecified

  • M27—

    Other diseases of jaws

  • M27.0—

    Developmental disorders of jaws

  • M27.1—

    Giant cell granuloma, central

  • M27.2—

    Inflammatory conditions of jaws

  • M27.3—

    Alveolitis of jaws

  • M27.4—

    Other and unspecified cysts of jaw

  • M27.40—

    Unspecified cyst of jaw

  • M27.49—

    Other cysts of jaw

  • M27.5—

    Periradicular pathology associated with previous endodontic treatment

  • M27.51—

    Perforation of root canal space due to endodontic treatment

  • M27.52—

    Endodontic overfill

  • M27.53—

    Endodontic underfill

  • M27.59—

    Other periradicular pathology associated with previous endodontic treatment

  • M27.6—

    Endosseous dental implant failure

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