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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  • M01.X51|

    Direct infection of right hip in infectious and parasitic diseases classified elsewhere

  • M01.X52|

    Direct infection of left hip in infectious and parasitic diseases classified elsewhere

  • M01.X59|

    Direct infection of unspecified hip in infectious and parasitic diseases classified elsewhere

  • M01.X6|

    Direct infection of knee in infectious and parasitic diseases classified elsewhere

  • M01.X61|

    Direct infection of right knee in infectious and parasitic diseases classified elsewhere

  • M01.X62|

    Direct infection of left knee in infectious and parasitic diseases classified elsewhere

  • M01.X69|

    Direct infection of unspecified knee in infectious and parasitic diseases classified elsewhere

  • M01.X7|

    Direct infection of ankle and foot in infectious and parasitic diseases classified elsewhere

  • M01.X71|

    Direct infection of right ankle and foot in infectious and parasitic diseases classified elsewhere

  • M01.X72|

    Direct infection of left ankle and foot in infectious and parasitic diseases classified elsewhere

  • M01.X79|

    Direct infection of unspecified ankle and foot in infectious and parasitic diseases classified elsewhere

  • M01.X8|

    Direct infection of vertebrae in infectious and parasitic diseases classified elsewhere

  • M01.X9|

    Direct infection of multiple joints in infectious and parasitic diseases classified elsewhere

  • M02|

    Postinfective and reactive arthropathies

  • M02.0|

    Arthropathy following intestinal bypass

  • M02.00|

    Arthropathy following intestinal bypass, unspecified site

  • M02.01|

    Arthropathy following intestinal bypass, shoulder

  • M02.011|

    Arthropathy following intestinal bypass, right shoulder

  • M02.012|

    Arthropathy following intestinal bypass, left shoulder

  • M02.019|

    Arthropathy following intestinal bypass, unspecified shoulder

  • M02.02|

    Arthropathy following intestinal bypass, elbow

  • M02.021|

    Arthropathy following intestinal bypass, right elbow

  • M02.022|

    Arthropathy following intestinal bypass, left elbow

  • M02.029|

    Arthropathy following intestinal bypass, unspecified elbow

  • M02.03|

    Arthropathy following intestinal bypass, wrist

  • M02.031|

    Arthropathy following intestinal bypass, right wrist

  • M02.032|

    Arthropathy following intestinal bypass, left wrist

  • M02.039|

    Arthropathy following intestinal bypass, unspecified wrist

  • M02.04|

    Arthropathy following intestinal bypass, hand

  • M02.041|

    Arthropathy following intestinal bypass, right hand

  • M02.042|

    Arthropathy following intestinal bypass, left hand

  • M02.049|

    Arthropathy following intestinal bypass, unspecified hand

  • M02.05|

    Arthropathy following intestinal bypass, hip

  • M02.051|

    Arthropathy following intestinal bypass, right hip

  • M02.052|

    Arthropathy following intestinal bypass, left hip

  • M02.059|

    Arthropathy following intestinal bypass, unspecified hip

  • M02.06|

    Arthropathy following intestinal bypass, knee

  • M02.061|

    Arthropathy following intestinal bypass, right knee

  • M02.062|

    Arthropathy following intestinal bypass, left knee

  • M02.069|

    Arthropathy following intestinal bypass, unspecified knee

  • M02.07|

    Arthropathy following intestinal bypass, ankle and foot

  • M02.071|

    Arthropathy following intestinal bypass, right ankle and foot

  • M02.072|

    Arthropathy following intestinal bypass, left ankle and foot

  • M02.079|

    Arthropathy following intestinal bypass, unspecified ankle and foot

  • M02.08|

    Arthropathy following intestinal bypass, vertebrae

  • M02.09|

    Arthropathy following intestinal bypass, multiple sites

  • M02.1|

    Postdysenteric arthropathy

  • M02.10|

    Postdysenteric arthropathy, unspecified site

  • M02.11|

    Postdysenteric arthropathy, shoulder

  • M02.111|

    Postdysenteric arthropathy, right shoulder

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