Young people with chronic conditions experience more difficulties with psychological adjustment than healthy young people. A chronic condition is one that persists for longer than 3 months; a clear diagnosis is not required before a problem can be defined as chronic. Various approaches to improve the psychological outcome for young people with chronic conditions have been developed. Several consensus guidelines are included in this document to outline best practice for providing care for young people with chronic conditions. Chapter 1 provides the background information on developing consensus guidelines. Chapter 2 reviews the literature on the basis for the interventions. Conclusions are drawn in chapter 3. Appendix contains "Development of Consensus of Good Practice." (Contains 30 references.) (JDM)