Is M23.0 a billable code?
No. M23.0 is a header code that groups 27 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
M23.0: Cystic meniscus
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
M23.0 groups related diagnoses under cystic meniscus. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under M23.0
- M23.000Cystic meniscus, unspecified lateral meniscus, right knee
- M23.001Cystic meniscus, unspecified lateral meniscus, left knee
- M23.002Cystic meniscus, unspecified lateral meniscus, unspecified knee
- M23.003Cystic meniscus, unspecified medial meniscus, right knee
- M23.004Cystic meniscus, unspecified medial meniscus, left knee
- M23.005Cystic meniscus, unspecified medial meniscus, unspecified knee
- M23.006Cystic meniscus, unspecified meniscus, right knee
- M23.007Cystic meniscus, unspecified meniscus, left knee
- M23.009Cystic meniscus, unspecified meniscus, unspecified knee
- M23.011Cystic meniscus, anterior horn of medial meniscus, right knee
- M23.012Cystic meniscus, anterior horn of medial meniscus, left knee
- M23.019Cystic meniscus, anterior horn of medial meniscus, unspecified knee
- M23.021Cystic meniscus, posterior horn of medial meniscus, right knee
- M23.022Cystic meniscus, posterior horn of medial meniscus, left knee
- M23.029Cystic meniscus, posterior horn of medial meniscus, unspecified knee
- M23.031Cystic meniscus, other medial meniscus, right knee
- M23.032Cystic meniscus, other medial meniscus, left knee
- M23.039Cystic meniscus, other medial meniscus, unspecified knee
- M23.041Cystic meniscus, anterior horn of lateral meniscus, right knee
- M23.042Cystic meniscus, anterior horn of lateral meniscus, left knee
- M23.049Cystic meniscus, anterior horn of lateral meniscus, unspecified knee
- M23.051Cystic meniscus, posterior horn of lateral meniscus, right knee
- M23.052Cystic meniscus, posterior horn of lateral meniscus, left knee
- M23.059Cystic meniscus, posterior horn of lateral meniscus, unspecified knee
- M23.061Cystic meniscus, other lateral meniscus, right knee
- M23.062Cystic meniscus, other lateral meniscus, left knee
- M23.069Cystic meniscus, other lateral meniscus, unspecified knee
Other codes in M23 Internal derangement of knee
- M23.2Derangement of meniscus due to old tear or injuryheader
- M23.3Other meniscus derangementsheader
- M23.4Loose body in kneeheader
- M23.5Chronic instability of kneeheader
- M23.6Other spontaneous disruption of ligament(s) of kneeheader
- M23.8Other internal derangements of kneeheader
- M23.9Unspecified internal derangement of kneeheader
M23.0 questions
What does M23.0 mean?
M23.0 is the ICD-10-CM code for Cystic meniscus. It is in chapter 13, Diseases of the musculoskeletal system and connective tissue (M00-M99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.