HP

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating a service provided by an individual with a doctor’s degree. This modifier may be required for state Medicaid programs, so check with your state guidelines.

HPI

Abbreviation for history of present illness. See history of present illness (HPI) . Also see brief history of present illness (HPI) and extended history of present illness (HPI) 1997 guidelines .