Postpartum psychosis: a diagnosis for the DSMV

Postpartum psychosis (PPP) is a serious disorder that is associated with maternal and infant morbidity and mortality, yet it is denied a diagnostic classification in the Diagnostic and Statistical Manual of Mental Disorders (DSM). PPP was included in the DSMI (1952) and the DSMII (1968). It was removed from DSMIII (1980). The purpose of this article is to review the history of postpartum psychosis in the DSM and provide the mechanism and research that argues for the inclusion of postpartum psychosis as a separate diagnostic entity in the DSM. This work describes a proposal to the DSMV committee in 2020 for inclusion of PPP as a unique diagnosis based on the cognitive disorganization that accompanies psychotic symptoms. The proposal for inclusion provides the required criteria such as a rationale for the proposed change and evidence that PPP is distinct from other disorders. Validators are described. Reliability studies and benefits of inclusion are provided. We were unable to gain consensus on the presence of cognitive impairment for all postpartum psychotic episodes. The committee opined that we did not demonstrate proof that PPP is a distinct diagnosis. However, the committee acknowledged that the current "specifier" may be insufficient, and thus the option favored by the committee is that it could be added to Sect. 3 of the DSM, "Conditions for Further Study." In the next proposal, we suggest that the unique temporal relationship of symptom onset to childbirth deserves consideration as unique criteria for diagnostic distinction of PPP.