Is M23.221 a billable code?
Yes. M23.221 is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.
ICD-10-CM FY2027 diagnosis code
M23.221: Derangement of posterior horn of medial meniscus due to old tear or injury, right knee
Billable codeValid for dates of service October 1, 2026 to September 30, 2027
M23.221 is a billable ICD-10-CM diagnosis code for derangement of posterior horn of medial meniscus due to old tear or injury, right knee. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.
Superbill GeneratorStart a superbill with M23.221 already added.Good Faith EstimateStart a cost estimate with M23.221 already added.CMS-1500 Claim FormFill a claim form with M23.221 in box 21.
Other codes in M23.22 Derangement of posterior horn of medial meniscus due to old tear or injury
M23.221 questions
What does M23.221 mean?
M23.221 is the ICD-10-CM code for Derangement of posterior horn of medial meniscus due to old tear or injury, right knee. 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.