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vaccination effective date

vacc_eff_dt
general
Updated 3/30/2026

Definition

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

Standard Abbreviation

vacc_eff_dt

Category

general

Database Usage

-- Example column naming
CREATE TABLE claims (
  claim_id VARCHAR(50),
  vacc_eff_dt VARCHAR(100),  -- vaccination effective date
  ...
);

-- Example in SELECT
SELECT 
  claim_id,
  vacc_eff_dt as vaccination_effective_date
FROM claims;

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