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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  • M06.869—

    Other specified rheumatoid arthritis, unspecified knee

  • M06.871—

    Other specified rheumatoid arthritis, right ankle and foot

  • M06.872—

    Other specified rheumatoid arthritis, left ankle and foot

  • M06.879—

    Other specified rheumatoid arthritis, unspecified ankle and foot

  • M06.88—

    Other specified rheumatoid arthritis, vertebrae

  • M06.89—

    Other specified rheumatoid arthritis, multiple sites

  • M06.8A—

    Other specified rheumatoid arthritis, other specified site

  • M06.9—

    Rheumatoid arthritis, unspecified

  • M07.60—

    Enteropathic arthropathies, unspecified site

  • M07.611—

    Enteropathic arthropathies, right shoulder

  • M07.612—

    Enteropathic arthropathies, left shoulder

  • M07.619—

    Enteropathic arthropathies, unspecified shoulder

  • M07.621—

    Enteropathic arthropathies, right elbow

  • M07.622—

    Enteropathic arthropathies, left elbow

  • M07.629—

    Enteropathic arthropathies, unspecified elbow

  • M07.631—

    Enteropathic arthropathies, right wrist

  • M07.632—

    Enteropathic arthropathies, left wrist

  • M07.639—

    Enteropathic arthropathies, unspecified wrist

  • M07.641—

    Enteropathic arthropathies, right hand

  • M07.642—

    Enteropathic arthropathies, left hand

  • M07.649—

    Enteropathic arthropathies, unspecified hand

  • M07.651—

    Enteropathic arthropathies, right hip

  • M07.652—

    Enteropathic arthropathies, left hip

  • M07.659—

    Enteropathic arthropathies, unspecified hip

  • M07.661—

    Enteropathic arthropathies, right knee

  • M07.662—

    Enteropathic arthropathies, left knee

  • M07.669—

    Enteropathic arthropathies, unspecified knee

  • M07.671—

    Enteropathic arthropathies, right ankle and foot

  • M07.672—

    Enteropathic arthropathies, left ankle and foot

  • M07.679—

    Enteropathic arthropathies, unspecified ankle and foot

  • M07.68—

    Enteropathic arthropathies, vertebrae

  • M07.69—

    Enteropathic arthropathies, multiple sites

  • M08.00—

    Unspecified juvenile rheumatoid arthritis of unspecified site

  • M08.011—

    Unspecified juvenile rheumatoid arthritis, right shoulder

  • M08.012—

    Unspecified juvenile rheumatoid arthritis, left shoulder

  • M08.019—

    Unspecified juvenile rheumatoid arthritis, unspecified shoulder

  • M08.021—

    Unspecified juvenile rheumatoid arthritis, right elbow

  • M08.022—

    Unspecified juvenile rheumatoid arthritis, left elbow

  • M08.029—

    Unspecified juvenile rheumatoid arthritis, unspecified elbow

  • M08.031—

    Unspecified juvenile rheumatoid arthritis, right wrist

  • M08.032—

    Unspecified juvenile rheumatoid arthritis, left wrist

  • M08.039—

    Unspecified juvenile rheumatoid arthritis, unspecified wrist

  • M08.041—

    Unspecified juvenile rheumatoid arthritis, right hand

  • M08.042—

    Unspecified juvenile rheumatoid arthritis, left hand

  • M08.049—

    Unspecified juvenile rheumatoid arthritis, unspecified hand

  • M08.051—

    Unspecified juvenile rheumatoid arthritis, right hip

  • M08.052—

    Unspecified juvenile rheumatoid arthritis, left hip

  • M08.059—

    Unspecified juvenile rheumatoid arthritis, unspecified hip

  • M08.061—

    Unspecified juvenile rheumatoid arthritis, right knee

  • M08.062—

    Unspecified juvenile rheumatoid arthritis, left knee

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