Population

A flag indicating whether an immunization record has been logically deleted or voided in the system without physical removal. Enables data retention for audit purposes while excluding the record from active immunization histories, registry submissions, and clinical decision support rule evaluations.

A textual label or narrative describing the specific vaccine administered, sourced from EHR, claims, or immunization registry systems. Often mapped to CVX or NDC code sets, this field supports vaccine type classification, reporting logic, and HEDIS measure definitions in data warehouse environments.

Granular clinical and administrative attributes associated with a vaccination record, including lot number, dose sequence, route, and site of administration, as captured in EHR or IIS systems. Used by data engineers to support clinical quality measures, recall programs, and regulatory compliance reporting.

The scheduled date by which the next vaccine dose in a series should be administered based on recommended immunization schedules, prior dose timing, and patient age. Used in clinical reminders, preventive care outreach programs, and population health gap-in-care reporting.

The length of time a vaccine administration encounter or observation period lasted, such as a post-vaccination monitoring window for adverse reactions. Relevant for documenting clinical observation compliance, particularly for vaccines with mandatory waiting periods like live attenuated or high-risk biologics.

The date on which a vaccination record becomes clinically or administratively active within an EHR, immunization registry, or member health record system. Used by data engineers to filter valid immunization history windows, apply HEDIS measurement periods, and manage slowly changing dimension logic in data warehouses.

The electronic mail address associated with a patient or provider contact record linked to a vaccination event in EHR or immunization registry systems. Used by data engineers to support outreach campaign integrations, vaccination reminder workflows, and patient communication audit trails in population health platforms.

A flag identifying whether a vaccine was administered under emergency conditions, such as post-exposure prophylaxis for rabies, tetanus, or hepatitis B. Triggers specialized clinical workflows, expedited supply access, and ensures proper documentation for emergency immunization event reporting and billing.

The date marking the conclusion or expiration of a vaccination record's applicability within EHR, immunization registry, or health plan data systems. Used by data engineers to manage record validity windows, apply temporal filters in cohort logic, and support gap-in-care analyses for multi-dose vaccine series tracking.

The time at which a vaccine administration encounter or post-vaccination observation period concluded. Used in clinical documentation to calculate observation duration, confirm adherence to required post-vaccine monitoring protocols, and support accurate scheduling and encounter billing records.

The identifier of the user who manually entered or transcribed the immunization record into the health information system, which may differ from the administering clinician. Important for distinguishing historical vaccine records entered retrospectively from those documented at the point of care.

The patient ethnicity captured at the time of immunization, used to support population health monitoring, health equity analysis, and public health surveillance. Enables identification of vaccination disparities across demographic groups and informs targeted outreach strategies for underserved communities.

The validity end date assigned to a vaccination record in EHR and immunization registry systems (e.g., IIS, Epic, Cerner). Tracks vaccine lot expiration or administration validity windows, ensuring compliance with CDC VIS and HL7 immunization messaging standards.

A unique identifier assigned to an immunization record by an external system, such as a state immunization information system, pharmacy system, or third-party registry. Used to link and reconcile vaccination records across disparate platforms and ensure accurate immunization history consolidation.

The fax number associated with the facility, provider, or patient contact recorded in the immunization workflow. Used to transmit vaccination records, consent forms, or immunization documentation to external providers, school health programs, or public health departments requiring physical record submission.

The charge associated with administering a vaccine, encompassing the vaccine product cost and administration fee. Captured in billing and claims workflows to support reimbursement from insurance payers, Vaccines for Children program reconciliation, and patient invoicing for non-covered immunization services.

The first name of the patient who received the vaccine, as recorded in the immunization encounter. Used to verify patient identity during vaccine administration, match records submitted to immunization registries, and ensure accurate attribution of vaccination history within the health record.

A binary status marker (0/1 or Y/N) on a vaccination record in EHR, claims, and public health registry systems. Indicates conditions such as contraindication, refusal, or completion status, supporting HEDIS immunization measure reporting and care gap identification workflows.

The recommended or prescribed dosing interval for a vaccine series, specifying how often doses should be administered, such as annually for influenza or on a multi-dose schedule for HPV. Drives clinical reminders, schedule adherence tracking, and immunization series completion reporting.

The complete legal name of the patient receiving the vaccine, combining first, middle, and last name as documented in the immunization record. Used for patient identity verification, immunization registry submissions, school and occupational health compliance reporting, and cross-system record matching.