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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  • M67.351—

    Transient synovitis, right hip

  • M67.352—

    Transient synovitis, left hip

  • M67.359—

    Transient synovitis, unspecified hip

  • M67.36—

    Transient synovitis, knee

  • M67.361—

    Transient synovitis, right knee

  • M67.362—

    Transient synovitis, left knee

  • M67.369—

    Transient synovitis, unspecified knee

  • M67.37—

    Transient synovitis, ankle and foot

  • M67.371—

    Transient synovitis, right ankle and foot

  • M67.372—

    Transient synovitis, left ankle and foot

  • M67.379—

    Transient synovitis, unspecified ankle and foot

  • M67.38—

    Transient synovitis, other site

  • M67.39—

    Transient synovitis, multiple sites

  • M67.4—

    Ganglion

  • M67.40—

    Ganglion, unspecified site

  • M67.41—

    Ganglion, shoulder

  • M67.411—

    Ganglion, right shoulder

  • M67.412—

    Ganglion, left shoulder

  • M67.419—

    Ganglion, unspecified shoulder

  • M67.42—

    Ganglion, elbow

  • M67.421—

    Ganglion, right elbow

  • M67.422—

    Ganglion, left elbow

  • M67.429—

    Ganglion, unspecified elbow

  • M67.43—

    Ganglion, wrist

  • M67.431—

    Ganglion, right wrist

  • M67.432—

    Ganglion, left wrist

  • M67.439—

    Ganglion, unspecified wrist

  • M67.44—

    Ganglion, hand

  • M67.441—

    Ganglion, right hand

  • M67.442—

    Ganglion, left hand

  • M67.449—

    Ganglion, unspecified hand

  • M67.45—

    Ganglion, hip

  • M67.451—

    Ganglion, right hip

  • M67.452—

    Ganglion, left hip

  • M67.459—

    Ganglion, unspecified hip

  • M67.46—

    Ganglion, knee

  • M67.461—

    Ganglion, right knee

  • M67.462—

    Ganglion, left knee

  • M67.469—

    Ganglion, unspecified knee

  • M67.47—

    Ganglion, ankle and foot

  • M67.471—

    Ganglion, right ankle and foot

  • M67.472—

    Ganglion, left ankle and foot

  • M67.479—

    Ganglion, unspecified ankle and foot

  • M67.48—

    Ganglion, other site

  • M67.49—

    Ganglion, multiple sites

  • M67.5—

    Plica syndrome

  • M67.50—

    Plica syndrome, unspecified knee

  • M67.51—

    Plica syndrome, right knee

  • M67.52—

    Plica syndrome, left knee

  • M67.8—

    Other specified disorders of synovium and tendon

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