M23.2

Derangement of unspecified meniscus due to old tear or injury

Derangement of anterior horn of medial meniscus due to old tear or injury

Derangement of posterior horn of medial meniscus due to old tear or injury

Derangement of other medial meniscus due to old tear or injury

Derangement of anterior horn of lateral meniscus due to old tear or injury

Derangement of posterior horn of lateral meniscus due to old tear or injury

Derangement of other lateral meniscus due to old tear or injury

Cystic meniscus

Other meniscus derangements

Loose body in knee

Chronic instability of knee

Other spontaneous disruption of ligament(s) of knee

Other internal derangements of knee

Unspecified internal derangement of knee