Population

An aggregated count or sum value representing the number of vaccination events for a patient, population cohort, or reporting period in EHR, claims, and public health analytics systems. Used in HEDIS immunization rate calculations, provider scorecards, and population health dashboards.

The cumulative number of vaccine doses administered within a specified population, time period, or reporting category. Used in public health surveillance, immunization coverage rate calculations, VFC program reporting, and tracking progress toward herd immunity thresholds at the patient panel or community level.

A coded category classification for a vaccination record in EHR, claims, and IIS systems, typically mapped to CVX, CPT, or NDC code sets. Distinguishes vaccine classes (e.g., live attenuated, inactivated, mRNA) and supports clinical decision support, formulary management, and quality measure stratification.

The most recent date on which an immunization administration record was modified in the clinical or registry system. Used for data synchronization between immunization information systems, audit trail maintenance, and identifying records requiring reconciliation during patient record merges or data quality reviews.

A classification indicating the clinical priority level or time-sensitivity of a required vaccination, such as routine, accelerated, or emergency. Used for outbreak response scheduling, catch-up immunization planning, and prioritizing vaccine administration workflows for high-risk patients or exposure events.

A discrete measured or coded data point associated with a vaccination record in EHR and laboratory systems, such as titer levels or immune response readings. Used to assess post-vaccination immunity, inform booster decisions, and support integration with lab result (LOINC-coded) data pipelines.

A sequential number or version identifier tracking the iteration of an immunization record, used to manage updates to vaccine administration data over time. Supports audit trail integrity, record reconciliation across immunization registries, and distinguishing the most current version of a modified vaccination entry.

The five or nine-digit US postal ZIP code for the location where a vaccine was administered. Used to support geographic analysis of immunization coverage rates, jurisdictional registry reporting, outbreak investigation mapping, and identifying underserved communities with low vaccination uptake.

A binary flag indicating whether a vaccination record is currently active and valid within the clinical system, as opposed to voided, historical, or superseded. Used during patient immunization history retrieval, registry data exchange, and deduplication processes to filter out inactive or erroneous vaccination entries.

A coded status value representing the current lifecycle state of a vaccination record, such as active, inactive, entered-in-error, or historical. Used to manage immunization record visibility in clinical workflows, registry submissions, and longitudinal patient vaccination history reviews across care settings.

The full physical address text of the location where a vaccine was administered, including street, city, state, and ZIP. Used to identify and validate the administration site for immunization registry reporting, geographic disease surveillance, and provider facility verification in population health programs.

A monetary value representing a financial modification applied to a vaccination claim or billing transaction, such as a contractual adjustment, discount, or correction. Used in vaccine program billing reconciliation, VFC program cost accounting, and adjudication of immunization-related healthcare claims.

The patient's age in years, months, or days at the time of vaccine administration, calculated from date of birth. Used to validate age-appropriate dosing per ACIP schedules, assess eligibility for age-specific vaccine formulations, and support pediatric immunization coverage reporting and catch-up schedule calculations.

The maximum dollar amount a payer will reimburse for a specific vaccination service based on the contracted fee schedule or plan benefit design. Used in claims adjudication to determine payment limits and calculate member cost-sharing obligations such as copays and coinsurance.

The monetary value associated with a vaccination encounter, representing the total financial transaction for immunization services rendered. Used in healthcare billing and claims processing to record the cost of vaccine administration and related clinical services provided to a patient.

Indicates whether a vaccination has been authorized, pending review, denied, or completed within a clinical or administrative workflow. Used in immunization management systems to track the current authorization state of a vaccine order from initiation through administration and documentation.

Identifies the clinician, pharmacist, or authorized healthcare personnel who granted approval for a vaccination to proceed. Used in immunization records and clinical audit trails to establish accountability and meet documentation requirements for vaccine ordering and administration workflows.

The recorded timestamp indicating when a patient arrived at a clinical setting for a scheduled or walk-in vaccination appointment. Used in immunization workflow tracking to measure patient throughput, appointment adherence, and time-to-administration metrics within vaccination programs.

The calendar date on which a patient presented to a healthcare facility or immunization clinic for vaccine administration. Used in immunization records to establish the timeline of the vaccination encounter and support scheduling, follow-up dose tracking, and public health reporting requirements.

The clinician's documented clinical evaluation of a patient prior to or following vaccine administration, including observations about eligibility, contraindications, and patient response. Used in immunization records to capture pre-vaccination screening findings and post-administration monitoring notes.