Osteochondritis dissecans, unspecified knee

This code signifies a condition where a segment of cartilage and underlying bone detaches or partially detaches from the articular surface of the knee joint. It represents an unspecified form of osteochondritis dissecans affecting the knee, without further specification of laterality or specific location within the knee.

Utilize this code when documentation confirms osteochondritis dissecans of the knee but lacks details regarding whether it affects the right or left knee, or a specific condyle. This code is appropriate when the physician's diagnosis is simply "osteochondritis dissecans of the knee" without further anatomical specificity.

• Avoid using this code if laterality (right/left) or a more specific location within the knee (e.g., medial femoral condyle) is documented.
• Review documentation carefully for any indication of laterality or specific site to select a more precise code from the M93.2 series.
• This code should be sequenced as a primary diagnosis when it is the reason for the encounter.