preferred_name: Index event date phq-9 or phq-9m score greater than 9 documented during the twelve month denominator identification period
preferred_name_lc: index event date phq-9 or phq-9m score greater than 9 documented during the twelve month denominator identification period
label: Idx evt dte phq>9 doc 12 mo
label_lc: idx evt dte phq>9 doc 12 mo