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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  • M13.122—

    Monoarthritis, not elsewhere classified, left elbow

  • M13.129—

    Monoarthritis, not elsewhere classified, unspecified elbow

  • M13.131—

    Monoarthritis, not elsewhere classified, right wrist

  • M13.132—

    Monoarthritis, not elsewhere classified, left wrist

  • M13.139—

    Monoarthritis, not elsewhere classified, unspecified wrist

  • M13.141—

    Monoarthritis, not elsewhere classified, right hand

  • M13.142—

    Monoarthritis, not elsewhere classified, left hand

  • M13.149—

    Monoarthritis, not elsewhere classified, unspecified hand

  • M13.151—

    Monoarthritis, not elsewhere classified, right hip

  • M13.152—

    Monoarthritis, not elsewhere classified, left hip

  • M13.159—

    Monoarthritis, not elsewhere classified, unspecified hip

  • M13.161—

    Monoarthritis, not elsewhere classified, right knee

  • M13.162—

    Monoarthritis, not elsewhere classified, left knee

  • M13.169—

    Monoarthritis, not elsewhere classified, unspecified knee

  • M13.171—

    Monoarthritis, not elsewhere classified, right ankle and foot

  • M13.172—

    Monoarthritis, not elsewhere classified, left ankle and foot

  • M13.179—

    Monoarthritis, not elsewhere classified, unspecified ankle and foot

  • M13.80—

    Other specified arthritis, unspecified site

  • M13.811—

    Other specified arthritis, right shoulder

  • M13.812—

    Other specified arthritis, left shoulder

  • M13.819—

    Other specified arthritis, unspecified shoulder

  • M13.821—

    Other specified arthritis, right elbow

  • M13.822—

    Other specified arthritis, left elbow

  • M13.829—

    Other specified arthritis, unspecified elbow

  • M13.831—

    Other specified arthritis, right wrist

  • M13.832—

    Other specified arthritis, left wrist

  • M13.839—

    Other specified arthritis, unspecified wrist

  • M13.841—

    Other specified arthritis, right hand

  • M13.842—

    Other specified arthritis, left hand

  • M13.849—

    Other specified arthritis, unspecified hand

  • M13.851—

    Other specified arthritis, right hip

  • M13.852—

    Other specified arthritis, left hip

  • M13.859—

    Other specified arthritis, unspecified hip

  • M13.861—

    Other specified arthritis, right knee

  • M13.862—

    Other specified arthritis, left knee

  • M13.869—

    Other specified arthritis, unspecified knee

  • M13.871—

    Other specified arthritis, right ankle and foot

  • M13.872—

    Other specified arthritis, left ankle and foot

  • M13.879—

    Other specified arthritis, unspecified ankle and foot

  • M13.88—

    Other specified arthritis, other site

  • M13.89—

    Other specified arthritis, multiple sites

  • M14.60—

    Charcôt's joint, unspecified site

  • M14.611—

    Charcôt's joint, right shoulder

  • M14.612—

    Charcôt's joint, left shoulder

  • M14.619—

    Charcôt's joint, unspecified shoulder

  • M14.621—

    Charcôt's joint, right elbow

  • M14.622—

    Charcôt's joint, left elbow

  • M14.629—

    Charcôt's joint, unspecified elbow

  • M14.631—

    Charcôt's joint, right wrist

  • M14.632—

    Charcôt's joint, left wrist

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