M23.251 - Derangement of posterior horn of lateral meniscus due to old tear or injury, right knee
M23.2 - Derangement of meniscus due to old tear or injury M23.25 - Derangement of posterior horn of lateral meniscus due to old tear or injury M23.251 - Derangement of posterior horn of lateral meniscus due to old tear or injury, right knee