ICPC-2 classification of reasons for encounter (percentages only). * Psychological includes substance use and eating disorders # Metabolism/endocrinology includes weight gain, obesity ICPC-2 (International Classification for Primary Care-2) is divided in 17 main chapters from A to Z classified by organs and systems, except chapter Z representing social codes. Procedures are included in the A chapter. In this sample the most frequently cited chapters are A: General, R: Respiratory, L: Musculoskeletal. All chapters were cited at least once except F: Eye, H: Ear W: Pregnancy, Childbearing, Family Planning and X: Female Genital.