Other juvenile arthritis, unspecified knee

This code signifies a form of juvenile arthritis affecting the knee joint, where the specific type of juvenile arthritis is not otherwise classified or specified. It indicates chronic joint inflammation in a patient under 16 years of age, localized to an unspecified knee.

Apply this code when documentation clearly states "juvenile arthritis" or "juvenile idiopathic arthritis" affecting the knee, but lacks further specificity regarding the subtype (e.g., oligoarticular, polyarticular, systemic). It is appropriate when the laterality of the affected knee is not documented.

• Always seek further specificity regarding the type of juvenile arthritis and the laterality of the affected knee if available in the medical record.
• Avoid using this code if a more specific ICD-10-CM code for juvenile arthritis (e.g., M08.0-, M08.2-) can be assigned.
• This code should be used as a last resort when documentation is insufficient for more precise coding.