M23.33 - Other meniscus derangements, other medial meniscus M23.3 - Other meniscus derangements M23.33 - Other meniscus derangements, other medial meniscus
M23.331 - Other meniscus derangements, other medial meniscus, right knee M23.332 - Other meniscus derangements, other medial meniscus, left knee M23.339 - Other meniscus derangements, other medial meniscus, unspecified knee