Excludes

  1. Diseases of the musculoskeletal system and connective tissue (M00-M99)

    Type 2arthropathic psoriasis (L40.5-)

    Type 2certain conditions originating in the perinatal period (P04-P96)

    Type 2certain infectious and parasitic diseases (A00-B99)

    Type 2compartment syndrome (traumatic) (T79.A-)

    Type 2complications of pregnancy, childbirth and the puerperium (O00-O9A)

    Type 2congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)

    Type 2endocrine, nutritional and metabolic diseases (E00-E88)

    Type 2injury, poisoning and certain other consequences of external causes (S00-T88)

    Type 2neoplasms (C00-D49)

    Type 2symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

  2. Infectious arthropathies (M00-M02)
  3. Direct infections of joint in infectious and parasitic diseases classified elsewhere (M01)

    Type 1arthropathy in Lyme disease (A69.23)

    Type 1gonococcal arthritis (A54.42)

    Type 1meningococcal arthritis (A39.83)

    Type 1mumps arthritis (B26.85)

    Type 1postinfective arthropathy (M02.-)

    Type 1postmeningococcal arthritis (A39.84)

    Type 1reactive arthritis (M02.3)

    Type 1rubella arthritis (B06.82)

    Type 1sarcoidosis arthritis (D86.86)

    Type 1typhoid fever arthritis (A01.04)

    Type 1tuberculosis arthritis (A18.01-A18.02)

  4. Direct infection of joint in infectious and parasitic diseases classified elsewhere (M01.X)
  5. Direct infection of knee in infectious and parasitic diseases classified elsewhere (M01.X6)
  6. Direct infection of unspecified knee in infectious and parasitic diseases classified elsewhere (M01.X69)