M23.21 - Derangement of anterior horn of medial meniscus due to old tear or injury

The ICD 10 Code for Derangement of anterior horn of medial meniscus due to old tear or injury is listed as M23.21.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field	Value
Diagnosis Code:	M23.21
Description:	Derangement of anterior horn of medial meniscus due to old tear or injury

Chapter	Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block	Other joint disorders (M20-M25)
Parent	M23.2 - Derangement of meniscus due to old tear or injury
ICD-10-CM Children (deeper level / typically more specific) of M23.21:
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
ICD-10-CM Siblings (same level / similar specificity) of M23.21:
M23.20 - Derangement of unspecified meniscus due to old tear or injury
M23.22 - Derangement of posterior horn of medial meniscus due to old tear or injury
M23.23 - Derangement of other medial meniscus due to old tear or injury
M23.24 - Derangement of anterior horn of lateral meniscus due to old tear or injury
M23.25 - Derangement of posterior horn of lateral meniscus due to old tear or injury
M23.26 - Derangement of other lateral meniscus due to old tear or injury