S83.22 - Peripheral tear of medial meniscus, current injury S83.2 - Tear of meniscus, current injury S83.22 - Peripheral tear of medial meniscus, current injury S83.221 - Peripheral tear of medial meniscus, current injury, right knee S83.222 - Peripheral tear of medial meniscus, current injury, left knee S83.229 - Peripheral tear of medial meniscus, current injury, unspecified knee