Q4HCPCS Level II
Service for ordering/referring physician qualifies as a service exemption
Related modifiers
Q0Investigational clinical service provided in a clinical research study that isQ1Routine clinical service provided in a clinical research study that is in anQ2Demonstration procedure/serviceQ3Live kidney donor surgery and related servicesQ5Service furnished under a reciprocal billing arrangement by a substituteQ6Service furnished under a fee-for-time compensation arrangement by a substituteQ7One class a findingQ8Two class b findings
Frequently asked questions
What does modifier Q4 mean?
Service for ordering/referring physician qualifies as a service exemption
HCPCS modifier data from CMS. CPT® is a registered trademark of the American Medical Association — CPT modifier descriptions are not included on this site. Always verify codes with authoritative sources before making billing decisions.