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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  • M87.038—

    Idiopathic aseptic necrosis of left carpus

  • M87.039—

    Idiopathic aseptic necrosis of unspecified carpus

  • M87.041—

    Idiopathic aseptic necrosis of right hand

  • M87.042—

    Idiopathic aseptic necrosis of left hand

  • M87.043—

    Idiopathic aseptic necrosis of unspecified hand

  • M87.044—

    Idiopathic aseptic necrosis of right finger(s)

  • M87.045—

    Idiopathic aseptic necrosis of left finger(s)

  • M87.046—

    Idiopathic aseptic necrosis of unspecified finger(s)

  • M87.050—

    Idiopathic aseptic necrosis of pelvis

  • M87.051—

    Idiopathic aseptic necrosis of right femur

  • M87.052—

    Idiopathic aseptic necrosis of left femur

  • M87.059—

    Idiopathic aseptic necrosis of unspecified femur

  • M87.061—

    Idiopathic aseptic necrosis of right tibia

  • M87.062—

    Idiopathic aseptic necrosis of left tibia

  • M87.063—

    Idiopathic aseptic necrosis of unspecified tibia

  • M87.064—

    Idiopathic aseptic necrosis of right fibula

  • M87.065—

    Idiopathic aseptic necrosis of left fibula

  • M87.066—

    Idiopathic aseptic necrosis of unspecified fibula

  • M87.071—

    Idiopathic aseptic necrosis of right ankle

  • M87.072—

    Idiopathic aseptic necrosis of left ankle

  • M87.073—

    Idiopathic aseptic necrosis of unspecified ankle

  • M87.074—

    Idiopathic aseptic necrosis of right foot

  • M87.075—

    Idiopathic aseptic necrosis of left foot

  • M87.076—

    Idiopathic aseptic necrosis of unspecified foot

  • M87.077—

    Idiopathic aseptic necrosis of right toe(s)

  • M87.078—

    Idiopathic aseptic necrosis of left toe(s)

  • M87.079—

    Idiopathic aseptic necrosis of unspecified toe(s)

  • M87.08—

    Idiopathic aseptic necrosis of bone, other site

  • M87.09—

    Idiopathic aseptic necrosis of bone, multiple sites

  • M87.10—

    Osteonecrosis due to drugs, unspecified bone

  • M87.111—

    Osteonecrosis due to drugs, right shoulder

  • M87.112—

    Osteonecrosis due to drugs, left shoulder

  • M87.119—

    Osteonecrosis due to drugs, unspecified shoulder

  • M87.121—

    Osteonecrosis due to drugs, right humerus

  • M87.122—

    Osteonecrosis due to drugs, left humerus

  • M87.129—

    Osteonecrosis due to drugs, unspecified humerus

  • M87.131—

    Osteonecrosis due to drugs of right radius

  • M87.132—

    Osteonecrosis due to drugs of left radius

  • M87.133—

    Osteonecrosis due to drugs of unspecified radius

  • M87.134—

    Osteonecrosis due to drugs of right ulna

  • M87.135—

    Osteonecrosis due to drugs of left ulna

  • M87.136—

    Osteonecrosis due to drugs of unspecified ulna

  • M87.137—

    Osteonecrosis due to drugs of right carpus

  • M87.138—

    Osteonecrosis due to drugs of left carpus

  • M87.139—

    Osteonecrosis due to drugs of unspecified carpus

  • M87.141—

    Osteonecrosis due to drugs, right hand

  • M87.142—

    Osteonecrosis due to drugs, left hand

  • M87.143—

    Osteonecrosis due to drugs, unspecified hand

  • M87.144—

    Osteonecrosis due to drugs, right finger(s)

  • M87.145—

    Osteonecrosis due to drugs, left finger(s)

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