Population

Ordinal position number indicating the dose order within a multi-dose vaccine series, such as dose 1, 2, or 3 of an HPV or DTaP series, as recorded in EHR and immunization registry systems using CVX and MVX code mappings. Data engineers use this field to validate series completeness and enforce ACIP interval rules in immunization forecasting logic.

Calendar date on which a vaccine was administered to a patient, recorded in EHR, medical claims, and immunization information systems as the date of service for billing and quality reporting purposes. Data engineers use this field as the primary temporal key for HEDIS measurement period filtering, claims adjudication matching, and IIS reporting submissions.

Coded value classifying the seriousness of an adverse event or contraindication associated with a vaccination record, captured in EHR pharmacovigilance modules and VAERS reporting systems using MedDRA or SNOMED CT terminology. Data engineers use this field to flag high-severity immunization events for safety surveillance pipelines and regulatory reporting workflows.

The biological classification for a vaccination administration. Used in healthcare data management and clinical workflows. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for immunization management and reporting.

Identifier indicating the originating system or organization that supplied a vaccination record, such as an EHR vendor, state immunization information system, pharmacy dispensing platform, or claims clearinghouse. Data engineers use this field to apply source-of-truth hierarchy rules during deduplication and master patient index reconciliation across immunization data pipelines.

Date marking the initiation of a vaccine series or the first dose administration for a multi-dose immunization regimen, recorded in EHR and immunization registry systems. Data engineers use this field to calculate recommended subsequent dose dates based on ACIP intervals and to anchor series completion timelines in immunization forecasting and quality measure logic.

The beginning time value for a vaccination administration. Used to track temporal information related to immunization start time. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for immunization management and reporting.

The state or province for a vaccination administration. Used in healthcare data management and clinical workflows. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for immunization management and reporting.

Coded value representing the current state of a vaccination record, such as completed, not done, entered-in-error, or contraindicated, as defined by HL7 FHIR Immunization status codes or EHR-specific enumerations. Data engineers use this field to filter valid vaccination events from administrative voids and to drive HEDIS numerator inclusion or exclusion logic in quality reporting pipelines.

The street location for a vaccination administration. Used in healthcare data management and clinical workflows. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for immunization management and reporting.

The drug concentration for a vaccination administration. Used in healthcare data management and clinical workflows. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for immunization management and reporting.

The partial sum value for a vaccination administration. Used in healthcare data management and clinical workflows. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for immunization management and reporting.

The system-generated unique id for a vaccination administration. Used as a unique reference to identify and track the immunization across healthcare systems. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for immunization management and reporting.

Reference identifying the intended disease, antigen, or patient population that a vaccine is designed to protect against, coded using CVX, HL7 vaccine group codes, or SNOMED CT disease targets in EHR and immunization registry systems. Data engineers use this field to categorize immunization records by disease focus for population health reporting and CMS preventive care analytics.

The provider specialty classification for a vaccination administration. Used as a unique reference to identify and track the immunization across healthcare systems. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for immunization management and reporting.

The body temperature value for a vaccination administration. Used in healthcare data management and clinical workflows. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for immunization management and reporting.

The ending date value for a vaccination administration. Used to track temporal information related to immunization termination date. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for immunization management and reporting.

The time-of-day value recording when a vaccine was administered in EHR and immunization registry systems. Stored in HH:MM:SS format, used in conjunction with immunization date for precise event timestamping, adverse event tracking, and HL7 v2 RXA segment population.

A combined date-time value (e.g., ISO 8601 format) capturing the exact moment a vaccination event was recorded or administered in EHR, IIS, and claims systems. Used for event sequencing, dose-interval validation, audit logging, and HL7 FHIR Immunization.occurrenceDateTime mapping.

The formal designation for a vaccination administration. Used in healthcare data management and clinical workflows. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for immunization management and reporting.