Cesarean Delivery Start Time for Conversions

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Description

This phenotype will be used to determine the pseudo case start time for the cesarean delivery portion of obstetric labor epidural cases that convert to cesarean delivery.

Limitation

Accuracy of this start time is dependent on data and documentation quality. It may determine a start time that is different from the actual time that the case clinically changed to a cesarean delivery case. This phenotype may shorten or lengthen the amount of time considered and is a best estimation of the time to choose.

Value Type

Enumeration

Value	Value Code	Definition

Return Columns

Column Name	Data Type

Granularity

Logic

Cesarean delivery start time for obstetric labor epidural cases converted to cesarean delivery cases should be determined by the following algorithm limited to between 'Anesthesia Start' and 'Anesthesia End'

The earliest of:

50003 'Patient in Room Date/Time' if within 60 minutes before 50006 'AACD Procedure Start Date/Time' OR 50235 'Surgical Incision' OR 50357 'Uterine Incision'
50596 'Obstetrics- Labor Continued as C-Section'
50006 'AACD Procedure Start Date/Time'
50628 'Preinduction- Patient transported to OR by anesthesia team'
50235 'Surgical Incision'
50357 'Uterine Incision'