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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  • M08.05—

    Unspecified juvenile rheumatoid arthritis, hip

  • M08.051—

    Unspecified juvenile rheumatoid arthritis, right hip

  • M08.052—

    Unspecified juvenile rheumatoid arthritis, left hip

  • M08.059—

    Unspecified juvenile rheumatoid arthritis, unspecified hip

  • M08.06—

    Unspecified juvenile rheumatoid arthritis, knee

  • M08.061—

    Unspecified juvenile rheumatoid arthritis, right knee

  • M08.062—

    Unspecified juvenile rheumatoid arthritis, left knee

  • M08.069—

    Unspecified juvenile rheumatoid arthritis, unspecified knee

  • M08.07—

    Unspecified juvenile rheumatoid arthritis, ankle and foot

  • M08.071—

    Unspecified juvenile rheumatoid arthritis, right ankle and foot

  • M08.072—

    Unspecified juvenile rheumatoid arthritis, left ankle and foot

  • M08.079—

    Unspecified juvenile rheumatoid arthritis, unspecified ankle and foot

  • M08.08—

    Unspecified juvenile rheumatoid arthritis, vertebrae

  • M08.09—

    Unspecified juvenile rheumatoid arthritis, multiple sites

  • M08.0A—

    Unspecified juvenile rheumatoid arthritis, other specified site

  • M08.1—

    Juvenile ankylosing spondylitis

  • M08.2—

    Juvenile rheumatoid arthritis with systemic onset

  • M08.20—

    Juvenile rheumatoid arthritis with systemic onset, unspecified site

  • M08.21—

    Juvenile rheumatoid arthritis with systemic onset, shoulder

  • M08.211—

    Juvenile rheumatoid arthritis with systemic onset, right shoulder

  • M08.212—

    Juvenile rheumatoid arthritis with systemic onset, left shoulder

  • M08.219—

    Juvenile rheumatoid arthritis with systemic onset, unspecified shoulder

  • M08.22—

    Juvenile rheumatoid arthritis with systemic onset, elbow

  • M08.221—

    Juvenile rheumatoid arthritis with systemic onset, right elbow

  • M08.222—

    Juvenile rheumatoid arthritis with systemic onset, left elbow

  • M08.229—

    Juvenile rheumatoid arthritis with systemic onset, unspecified elbow

  • M08.23—

    Juvenile rheumatoid arthritis with systemic onset, wrist

  • M08.231—

    Juvenile rheumatoid arthritis with systemic onset, right wrist

  • M08.232—

    Juvenile rheumatoid arthritis with systemic onset, left wrist

  • M08.239—

    Juvenile rheumatoid arthritis with systemic onset, unspecified wrist

  • M08.24—

    Juvenile rheumatoid arthritis with systemic onset, hand

  • M08.241—

    Juvenile rheumatoid arthritis with systemic onset, right hand

  • M08.242—

    Juvenile rheumatoid arthritis with systemic onset, left hand

  • M08.249—

    Juvenile rheumatoid arthritis with systemic onset, unspecified hand

  • M08.25—

    Juvenile rheumatoid arthritis with systemic onset, hip

  • M08.251—

    Juvenile rheumatoid arthritis with systemic onset, right hip

  • M08.252—

    Juvenile rheumatoid arthritis with systemic onset, left hip

  • M08.259—

    Juvenile rheumatoid arthritis with systemic onset, unspecified hip

  • M08.26—

    Juvenile rheumatoid arthritis with systemic onset, knee

  • M08.261—

    Juvenile rheumatoid arthritis with systemic onset, right knee

  • M08.262—

    Juvenile rheumatoid arthritis with systemic onset, left knee

  • M08.269—

    Juvenile rheumatoid arthritis with systemic onset, unspecified knee

  • M08.27—

    Juvenile rheumatoid arthritis with systemic onset, ankle and foot

  • M08.271—

    Juvenile rheumatoid arthritis with systemic onset, right ankle and foot

  • M08.272—

    Juvenile rheumatoid arthritis with systemic onset, left ankle and foot

  • M08.279—

    Juvenile rheumatoid arthritis with systemic onset, unspecified ankle and foot

  • M08.28—

    Juvenile rheumatoid arthritis with systemic onset, vertebrae

  • M08.29—

    Juvenile rheumatoid arthritis with systemic onset, multiple sites

  • M08.2A—

    Juvenile rheumatoid arthritis with systemic onset, other specified site

  • M08.3—

    Juvenile rheumatoid polyarthritis (seronegative)

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