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20 Derangement of unspecified meniscus due to old tear or injury
- Derangement of unspecified lateral meniscus due to old tear or injury
- Derangement of unspecified medial meniscus due to old tear or injury
- M23.200 Derangement of unspecified lateral meniscus due to old tear or injury, right knee
- M23.201 Derangement of unspecified lateral meniscus due to old tear or injury, left knee
- M23.202 Derangement of unspecified lateral meniscus due to old tear or injury, unspecified knee
- M23.203 Derangement of unspecified medial meniscus due to old tear or injury, right knee
- M23.204 Derangement of unspecified medial meniscus due to old tear or injury, left knee
- M23.205 Derangement of unspecified medial meniscus due to old tear or injury, unspecified knee
- M23.206 Derangement of unspecified meniscus due to old tear or injury, right knee
- M23.207 Derangement of unspecified meniscus due to old tear or injury, left knee
- M23.209 Derangement of unspecified meniscus due to old tear or injury, unspecified knee
- M23.21 Derangement of anterior horn of medial meniscus due to old tear or injury
- M23.211 Derangement of anterior horn of medial meniscus due to old tear or injury, right knee
- M23.212 Derangement of anterior horn of medial meniscus due to old tear or injury, left knee
- M23.219 Derangement of anterior horn of medial meniscus due to old tear or injury, unspecified knee
- M23.22 Derangement of posterior horn of medial meniscus due to old tear or injury
- M23.221 Derangement of posterior horn of medial meniscus due to old tear or injury, right knee
- M23.222 Derangement of posterior horn of medial meniscus due to old tear or injury, left knee
- M23.
