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3. Chapter - M00-M99
4. Section - M20-M25
5. Category - M23
6. M23.221

M23.221 - Derangement of posterior horn of medial meniscus due to old tear or injury, right knee

• Applicable to Derangement of posterior horn of medial meniscus due to old tear or injury, right knee
• The 2025 edition of ICD10-CM M23.221 became effective on October 1, 2024.
• This is the American ICD10-CM version of M23.221 - other international versions of ICD10 M23.221 may differ.
• M23.221 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

The following codes above M23.221 contain annotation back-references that may be applicable to M23.221:

• 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.