55757-9

LOINC code 55757-9 identifies "Patient Health Questionnaire 2 item (PHQ-2) [Reported]". The Patient Health Questionnaire-2 (PHQ-2) is a shorter version of the PHQ-9 containing two screening questions: one about the frequency of depressed mood and another about loss of interest in activities. A positive to either question indicates further testing is required.

This code measures Patient health questionnaire 2 item in ^Patient. It belongs to the PANEL.SURVEY.PHQ class in the LOINC classification.

LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.