Other internal derangements of right knee

This code signifies a non-specific internal derangement of the right knee joint that doesn't fit more precise diagnostic categories. It encompasses various structural abnormalities within the knee, such as plica syndrome, loose bodies, or other unspecified internal derangements, affecting the right side.

Use this code when documentation indicates an internal derangement of the right knee, but a more specific diagnosis (e.g., meniscal tear, ligamentous sprain) cannot be definitively assigned. This is appropriate for conditions like symptomatic plica or undiagnosed mechanical symptoms where imaging or arthroscopy reveals an internal derangement not otherwise classified.

• Always attempt to code to a more specific diagnosis if supported by documentation.
• Ensure laterality (right knee) is clearly documented.
• Consider codes for specific meniscal or ligamentous injuries (e.g., M23.2-, M23.5-) before resorting to this non-specific code.