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immunization onset date

immun_onset_dt
general
Updated 3/30/2026

Definition

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

Standard Abbreviation

immun_onset_dt

Category

general

Database Usage

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

-- Example in SELECT
SELECT 
  claim_id,
  immun_onset_dt as immunization_onset_date
FROM claims;

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