Data Element

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Gestational Age at Birth


MedMorph's support of Gestational Age at Birth

To support the adoption of 'Gestation Age at Birth' into USCDI it is important to note that 57 jurisdictions are required to report data elements such as 'Gestational Age at Birth' nationally for birth and fetal death reporting, and birth defects reporting.  The National Center for Health Statistics guide to completing the facility worksheets for live birth and fetal death reports defines a newborn or fetus gestational age "As the obstetric estimate of the infant’s gestation in completed weeks based on the birth/delivery attendant’s final estimate of gestation."  For further details on documentation of calculating gestational age for a newborn or fetus can be found under item '30. Obstetric estimate of gestation at delivery'.   Accurate pregnancy dating is important to improve outcomes and is a research and public health imperative. The best estimated due date should be documented clearly in the medical records. Additionally, given the current pandemic real time birth reporting for public health is paramount in assessing the medical care for both mothers and newborns. Additionally, while the proposed data class ‘Observation’ can capture data elements such as Estimated Date of Delivery it is important to recognize that birth and delivery events are information that may be captured within specific areas of a healthcare system such as labor and delivery summaries and prenatal care records. To help lessen the burden of implementations and queries of these events we propose a new Delivery and Pregnancy Information class where data elements like Gestational Age at Birth may be captured. Additional relevant specification for this data element includes HL7 and IHE standards listed below. HL7 Version 2.6 Implementation Guide: Vital Records Birth and Fetal Death Reporting, Release 1 STU Release 2 - US Realm: IHE Quality, Research and Public Health Technical Framework Supplement – Birth and Fetal Death Reporting-Enhanced (BFDR-E) Revision 3.1: Vital Records Common Profiles Library FHIR IG: Vital Records Birth and Fetal Death Reporting: Birth Defect Reporting FHIR IG: HL7 CDA® R2 Implementation Guide: Ambulatory and Hospital Healthcare Provider Reporting to Birth Defect Registries Release 1 , STU 2 -US Realm: LOINC codes exist for each of the proposed data element: 11884-4: Gestational age Estimated The use of the Gestation Age at Birth data element includes widespread use, required to be reported nationally and is routinely collected on EHR/HIT systems. Below lists examples of artifacts of where this data element is collected. Facility worksheet information: EPIC stork module (obstetrics) for birth reporting: EPIC FHIR APIs for patient, vitals, obstetric details: BFDR-E in ISA: IHE Connectathon integration profiles for BFDR-E (2013 - 2020) HL7 FHIR Connectathon results (Sept 2020): birth and fetal death reporting results testing between electronic birth registration system vendors (FHIR) NACCHO 360X Interoperability Demonstrations for Birth and Fetal Death reporting 2020 between NextGen and two state electronic birth registrations system vendors using FHIR. HIMSS Interoperability showcase (2018 – 2019)

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