Population

The lower threshold value defined for a specific vaccine-related measurement or dosing parameter, such as minimum patient age or minimum interval between doses. Used in immunization clinical decision support systems to enforce eligibility rules and ensure vaccinations are not administered before the clinically or regulatory approved minimum criteria are met.

The mobile phone number of the patient or guardian recorded at the time of vaccine administration. Used in immunization systems to support appointment reminders, recall notifications for subsequent doses, vaccination record distribution, and public health outreach communications related to immunization schedules.

The username or system identifier of the user or process that last updated a vaccination administration record. Used in immunization audit trails to maintain data integrity, support regulatory compliance, and provide accountability tracking for any changes made to immunization documentation after initial entry.

The timestamp recording the most recent update to a vaccination record in EHR, IIS, and claims adjudication systems. Critical for change data capture (CDC) pipelines, audit trail compliance, and reconciling discrepancies between source systems during immunization data integration.

The precise date and timestamp when a vaccination administration record was last updated in the system. Used in immunization data management to maintain audit trails, detect data changes, support synchronization between immunization registries and source systems, and ensure record integrity for regulatory and clinical reporting.

The human-readable display label for a vaccine in EHR, pharmacy, and immunization registry systems. Typically maps to CVX codes (CDC vaccine terminology) or NDC codes, enabling standardized vaccine identification across HL7 FHIR Immunization resources and HEDIS measure reporting.

Free-text or structured annotation attached to a vaccination record in EHR and immunization registry systems. Captures clinician observations, patient reactions, administration deviations, or refusal reasons, and maps to HL7 FHIR Immunization.note elements for interoperability and audit purposes.

Unique numeric identifier assigned to a vaccination record within EHR or immunization registry systems such as IIS or VXU HL7 messages. Used by data engineers to deduplicate immunization events and link records across CDC, state registry, and payer claims datasets.

The date when a patient's adverse reaction, illness, or relevant clinical condition began, documented in relation to a vaccine administration event. Used in immunization safety surveillance and adverse event reporting systems such as VAERS to assess the temporal relationship between vaccination and subsequent health outcomes.

Records the patient's blood oxygen saturation level (SpO2) measured at the time of vaccine administration. Captured as a pre- or post-vaccination vital sign to assess patient stability and identify contraindications or adverse reactions requiring clinical intervention.

The actual dollar amount reimbursed by the payer for a vaccine administration encounter, recorded in claims and billing systems. Reflects the adjudicated payment after applying contractual adjustments, copays, and deductibles. Used in immunization program financial reconciliation and cost tracking.

The calendar date on which payment was issued by the payer for a vaccine administration claim. Used in immunization billing reconciliation to track reimbursement timelines, identify delayed payments, and align financial records with adjudicated claims in healthcare billing systems.

Foreign key or hierarchical reference linking a child immunization record to its parent encounter, series, or patient record in EHR and immunization registry systems. Critical for data engineers building vaccination series hierarchies, such as multi-dose COVID-19 or hepatitis B schedules in HL7 or FHIR pipelines.

Calculated ratio representing vaccination coverage or series completion rates within a defined member population, used in quality reporting systems such as HEDIS, CMS Star Ratings, and population health platforms. Data engineers use this metric to assess compliance thresholds against NCQA or state immunization benchmarks.

Defined date range during which a vaccination record is considered valid or reportable, as tracked in EHR systems, payer claims, and immunization information systems. Data engineers use this field to filter vaccination events within measurement years for HEDIS quality measures or CMS reporting cycles.

Telephone contact number associated with the administering provider, clinic, or patient record tied to a vaccination event in EHR and immunization registry systems. Used by data engineers during provider directory reconciliation, outreach campaign processing, and immunization recall workflows in population health platforms.

The documented clinical plan associated with a patient's vaccination encounter, including scheduled follow-up doses, vaccine series sequencing, and any post-administration monitoring instructions. Supports immunization schedule management and care coordination within clinical documentation systems.

The insurance policy identifier associated with the patient's coverage at the time of vaccine administration. Used in immunization billing and claims processing to link the vaccination encounter to the correct health plan, enabling accurate adjudication and reimbursement tracking.

The patient's preferred name or display name recorded at the time of vaccine administration. Used in immunization registries and clinical systems to ensure patient-friendly communication, consent documentation, and accurate matching across immunization records and registry submissions.

The billed or list price of a vaccine dose at the time of administration, prior to payer adjustments or discounts. Used in immunization program cost analysis, vaccine inventory valuation, and financial reporting to compare actual reimbursement against the charged amount for the vaccination encounter.