M23.9 - Unspecified internal derangement of knee
- Applicable to Unspecified internal derangement of knee
- The 2025 edition of ICD10-CM M23.9 became effective on October 1, 2024.
- This is the American ICD10-CM version of M23.9 - other international versions of ICD10 M23.9 may differ.
- M23.9 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- M23.9 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.
- M23.9 - Unspecified internal derangement of knee
- M23.9 - Unspecified internal derangement of knee
- M23.90 - Unspecified internal derangement of unspecified knee
- M23.91 - Unspecified internal derangement of right knee
- M23.92 - Unspecified internal derangement of left knee
The following codes above M23.9 contain annotation back-references that may be applicable to M23.9:
Chapter: M00-M99 Diseases of the musculoskeletal system and connective tissue
Section: M20-M25 Other joint disorders
Category: M23 Internal derangement of knee
Non-Billable/Non-Specific Code
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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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