M23.91
M23.91: Unspecified internal derangement of right knee
Billable / specific codeICD-10-CMright
M23.91 is a billable, specific ICD-10-CM code for unspecified internal derangement of right knee. It is valid for submission on a claim.
Check M23.91 with the rest of the claim: free scrubberExcludes1 inherited from the categories above M23.91
A category’s note binds every code beneath it.
Excludes2 inherited from the categories above M23.91
Not part of this code, but both may be coded when both are present.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
M23.91 is named in 9 Medicare coverage policies: 2 listing it as supporting medical necessity, and 7 listing it as NOT covered. Which one applies depends on your Medicare contractor.
- A58865Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A58883Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A58893Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A59374Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
Code history
Unchanged in every release from FY2024 to FY2027.