A Primary Care Version of International Classification of Diseases (10th Revision) Chapter V. for Mental and Behavioural Disorders (ICD-10 PHC) has been developed. This version focuses on 24 conditions which are frequently seen in primary care and which can be managed effectively by general practitioners. The classification is accompanied by flipcards one for each of the conditions. The cards contain diagnostic guidelines on one side and management guidelines on the other. The latter provide information which should be given to the patient, advice on the content of counselling, the available treatment methods, and indications for specialist referral. This classification system is also supported by diagnostic decision making aids, medication cards, and patient leaflets to facilitate the recognition and management of patients in primary care settings. The draft ICD-10 PHC will be finalized after the field trials which will test the applicability and usefulness of the system in different primary care settings in various countries.