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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