M66.9
M66.9: Spontaneous rupture of unspecified tendon
Billable / specific codeICD-10-CM
M66.9 is a billable, specific ICD-10-CM code for spontaneous rupture of unspecified tendon. It is valid for submission on a claim.
Check M66.9 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Rupture at musculotendinous junction, nontraumatic
Excludes2 inherited from the categories above M66.9
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
M66.9 is named in 7 Medicare coverage policies: 0 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
Alphabetic index entries that lead here
- Rupture, ruptured›tendon›nontraumatic(spontaneous)
Code history
Unchanged in every release from FY2024 to FY2027.