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immunization effective date

immun_eff_dt
general
Updated 3/30/2026

Definition

The active beginning date for a vaccination record. Used to track when immunization effective date in healthcare data systems.

Standard Abbreviation

immun_eff_dt

Category

general

Database Usage

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

-- Example in SELECT
SELECT 
  claim_id,
  immun_eff_dt as immunization_effective_date
FROM claims;

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