Published jointly by the Guidelines and Evidence-Based Medicine Subcommittee of the Academy of Psychosomatic Medicine (APM) and the European Association of Psychosomatic Medicine (EAPM).

This monograph summarizes current knowledge related to the diagnosis, epidemiology, etiology, and management of catatonia in the medically ill population. Specifically, this monograph primarily discusses catatonia due to another medical condition (CD-AMC), previously known as catatonia due to a general medical condition (CDGMC) under DSM-IV-TR terminology. This monograph also discusses catatonia occurring in the setting of another mental disorder when encountered by a consultation psychiatry service in a general hospital setting. Malignant catatonia, otherwise known as the Neuroleptic Malignant Syndrome (NMS) is also discussed. A more thorough review of the pathophysiology of catatonia, and catatonia occurring in the setting of another mental disorder (such as bipolar disorder, major depression, neurodevelopmental disorder, or schizophrenia) is beyond the focus of this monograph. Readers are encouraged to consult the recommended readings for more detailed information on this topic (Appendix A).