History of the present illness
Following the chief complaint in medical history taking, a history of the present illness (abbreviated HPI) (termed history of presenting complaint (HPC) in the UK) refers to a detailed interview prompted by the chief complaint or presenting symptom (for example, pain). == Questions to include == Different sources include different questions to be asked while conducting an HPI. Several acronyms have been developed to categorize the appropriate questions to include.
Source: Wikipedia — History of the present illness (CC BY-SA 4.0)