M23.23 - Derangement of other medial meniscus due to old tear or injury M23.2 - Derangement of meniscus due to old tear or injury M23.23 - Derangement of other medial meniscus due to old tear or injury
M23.231 - Derangement of other medial meniscus due to old tear or injury, right knee M23.232 - Derangement of other medial meniscus due to old tear or injury, left knee M23.239 - Derangement of other medial meniscus due to old tear or injury, unspecified knee