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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  • M11.122—

    Familial chondrocalcinosis, left elbow

  • M11.129—

    Familial chondrocalcinosis, unspecified elbow

  • M11.13—

    Familial chondrocalcinosis, wrist

  • M11.131—

    Familial chondrocalcinosis, right wrist

  • M11.132—

    Familial chondrocalcinosis, left wrist

  • M11.139—

    Familial chondrocalcinosis, unspecified wrist

  • M11.14—

    Familial chondrocalcinosis, hand

  • M11.141—

    Familial chondrocalcinosis, right hand

  • M11.142—

    Familial chondrocalcinosis, left hand

  • M11.149—

    Familial chondrocalcinosis, unspecified hand

  • M11.15—

    Familial chondrocalcinosis, hip

  • M11.151—

    Familial chondrocalcinosis, right hip

  • M11.152—

    Familial chondrocalcinosis, left hip

  • M11.159—

    Familial chondrocalcinosis, unspecified hip

  • M11.16—

    Familial chondrocalcinosis, knee

  • M11.161—

    Familial chondrocalcinosis, right knee

  • M11.162—

    Familial chondrocalcinosis, left knee

  • M11.169—

    Familial chondrocalcinosis, unspecified knee

  • M11.17—

    Familial chondrocalcinosis, ankle and foot

  • M11.171—

    Familial chondrocalcinosis, right ankle and foot

  • M11.172—

    Familial chondrocalcinosis, left ankle and foot

  • M11.179—

    Familial chondrocalcinosis, unspecified ankle and foot

  • M11.18—

    Familial chondrocalcinosis, vertebrae

  • M11.19—

    Familial chondrocalcinosis, multiple sites

  • M11.2—

    Other chondrocalcinosis

  • M11.20—

    Other chondrocalcinosis, unspecified site

  • M11.21—

    Other chondrocalcinosis, shoulder

  • M11.211—

    Other chondrocalcinosis, right shoulder

  • M11.212—

    Other chondrocalcinosis, left shoulder

  • M11.219—

    Other chondrocalcinosis, unspecified shoulder

  • M11.22—

    Other chondrocalcinosis, elbow

  • M11.221—

    Other chondrocalcinosis, right elbow

  • M11.222—

    Other chondrocalcinosis, left elbow

  • M11.229—

    Other chondrocalcinosis, unspecified elbow

  • M11.23—

    Other chondrocalcinosis, wrist

  • M11.231—

    Other chondrocalcinosis, right wrist

  • M11.232—

    Other chondrocalcinosis, left wrist

  • M11.239—

    Other chondrocalcinosis, unspecified wrist

  • M11.24—

    Other chondrocalcinosis, hand

  • M11.241—

    Other chondrocalcinosis, right hand

  • M11.242—

    Other chondrocalcinosis, left hand

  • M11.249—

    Other chondrocalcinosis, unspecified hand

  • M11.25—

    Other chondrocalcinosis, hip

  • M11.251—

    Other chondrocalcinosis, right hip

  • M11.252—

    Other chondrocalcinosis, left hip

  • M11.259—

    Other chondrocalcinosis, unspecified hip

  • M11.26—

    Other chondrocalcinosis, knee

  • M11.261—

    Other chondrocalcinosis, right knee

  • M11.262—

    Other chondrocalcinosis, left knee

  • M11.269—

    Other chondrocalcinosis, unspecified knee

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