The book is at least three years away from publication, but it is already stirring bitter debates over a new set of possible psychiatric disorders.

Dr. Darrel A. Regier is co-chairman of a panel compiling the latest Diagnostic and Statistical Manual of Mental Disorders.

Panels of psychiatrists are hashing out just such questions, and their answers — to be published in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders — will have consequences for insurance reimbursement, research and individuals’ psychological identity for years to come.