The acronym 3CGP signifies “Core Concept Classification in General Practice Family Medicine.” 3CGP is a classification system consisting of two parts: International Classification of Primary Care Version 2 (ICPC-2) and Q-Codes. The initial aim of 3CGP is to index grey literature, e.g., GP/FM congress abstracts, posters, and other presentations, with appropriate and specific descriptors. ICPC-2 and Q-Codes together contain less than 1000 descriptors specific to GP/FM.
Q-Codes, the second part of 3CGP, describe the non-clinical activities of GPs. These non-clinical activities include, but are not limited to, quality, continuity, and medical ethics issues.