Objectives”, explains how to select and use various test methods for evaluating disease states, the prognosis, and the effects of treatment. References to the literature published since 2010 have been added during the preparation of this Guideline. Data obtained in Japan were reviewed whenever possible. Some information about acute myocardial infarction and unstable angina has been excluded because separate guidelines are available for these conditions. This Guideline is designed to assist clinicians, especially cardiologists, diagnose chronic coronary heart disease, evaluate its severity, formulate a treatment plan, assess the response to treatment, and manage patients. In particular, the characteristics and diagnostic performance of each test are explained, as well as how effective each test is for different diagnostic purposes and disease states, together with the potential pitfalls. In addition, this Guideline is intended to provide support for selecting a combination of multiple tests so that the information required to treat individual patients can be obtained. For this reason, the “Level of evidence”, which indicates the relationship between each test/diagnosis and clinical outcomes, is also mentioned whenever possible, although it can be difficult to establish evidence for such relationships. Accordingly, this Guideline may also be useful for other healthcare professionals in addition to clinicians. We hope this Guideline will be a source of useful information in hospital wards, outpatient clinics, and laboratories.