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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  • M00.811|

    Arthritis due to other bacteria, right shoulder

  • M00.812|

    Arthritis due to other bacteria, left shoulder

  • M00.819|

    Arthritis due to other bacteria, unspecified shoulder

  • M00.82|

    Arthritis due to other bacteria, elbow

  • M00.821|

    Arthritis due to other bacteria, right elbow

  • M00.822|

    Arthritis due to other bacteria, left elbow

  • M00.829|

    Arthritis due to other bacteria, unspecified elbow

  • M00.83|

    Arthritis due to other bacteria, wrist

  • M00.831|

    Arthritis due to other bacteria, right wrist

  • M00.832|

    Arthritis due to other bacteria, left wrist

  • M00.839|

    Arthritis due to other bacteria, unspecified wrist

  • M00.84|

    Arthritis due to other bacteria, hand

  • M00.841|

    Arthritis due to other bacteria, right hand

  • M00.842|

    Arthritis due to other bacteria, left hand

  • M00.849|

    Arthritis due to other bacteria, unspecified hand

  • M00.85|

    Arthritis due to other bacteria, hip

  • M00.851|

    Arthritis due to other bacteria, right hip

  • M00.852|

    Arthritis due to other bacteria, left hip

  • M00.859|

    Arthritis due to other bacteria, unspecified hip

  • M00.86|

    Arthritis due to other bacteria, knee

  • M00.861|

    Arthritis due to other bacteria, right knee

  • M00.862|

    Arthritis due to other bacteria, left knee

  • M00.869|

    Arthritis due to other bacteria, unspecified knee

  • M00.87|

    Arthritis due to other bacteria, ankle and foot

  • M00.871|

    Arthritis due to other bacteria, right ankle and foot

  • M00.872|

    Arthritis due to other bacteria, left ankle and foot

  • M00.879|

    Arthritis due to other bacteria, unspecified ankle and foot

  • M00.88|

    Arthritis due to other bacteria, vertebrae

  • M00.89|

    Polyarthritis due to other bacteria

  • M00.9|

    Pyogenic arthritis, unspecified

  • M01|

    Direct infections of joint in infectious and parasitic diseases classified elsewhere

  • M01.X|

    Direct infection of joint in infectious and parasitic diseases classified elsewhere

  • M01.X0|

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

  • M01.X1|

    Direct infection of shoulder joint in infectious and parasitic diseases classified elsewhere

  • M01.X11|

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

  • M01.X12|

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

  • M01.X19|

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

  • M01.X2|

    Direct infection of elbow in infectious and parasitic diseases classified elsewhere

  • M01.X21|

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

  • M01.X22|

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

  • M01.X29|

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

  • M01.X3|

    Direct infection of wrist in infectious and parasitic diseases classified elsewhere

  • M01.X31|

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

  • M01.X32|

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

  • M01.X39|

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

  • M01.X4|

    Direct infection of hand in infectious and parasitic diseases classified elsewhere

  • M01.X41|

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

  • M01.X42|

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

  • M01.X49|

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

  • M01.X5|

    Direct infection of hip in infectious and parasitic diseases classified elsewhere

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