L90

Synonym

• Osteoarthrosis of knee

Inclusions

• osteoarthritis of knee secondary to dysplasia/trauma

Criteria

• either characteristic imaging appearance
• or joint disorder of at least 3 months' duration, with no constitutional symptoms such as fever, malaise, etc. and three or more of the following:
• intermittent swelling
• crepitation
• stiffness/limitation of movement
• normal ESR, rheumatoid tests, and uric acid
• over 40 years of age

Consider

• joint symptom L20
• arthritis NOS L91

ICD-10

• M17.0; M17.1; M17.2; M17.3; M17.4; M17.5; M17.9