M23.21 - Derangement of anterior horn of medial meniscus due to old tear or injury
- Applicable to Derangement of anterior horn of medial meniscus due to old tear or injury
- The 2025 edition of ICD10-CM M23.21 became effective on October 1, 2024.
- This is the American ICD10-CM version of M23.21 - other international versions of ICD10 M23.21 may differ.
- M23.21 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- M23.21 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.
- M23.21 - Derangement of anterior horn of medial meniscus due to old tear or injury
- 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
Non-Billable/Non-Specific Code
The following codes above M23.21 contain annotation back-references that may be applicable to M23.21:
- Chapter: M00-M99 - Diseases of the musculoskeletal system and connective tissue
- Section: M20-M25 - Other joint disorders
- Category: M23 - Internal derangement of knee
Browse other similar CM codes:
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
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