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effective onset date

eff_onset_dt
general
Updated 3/30/2026

Definition

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

Standard Abbreviation

eff_onset_dt

Category

general

Database Usage

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

-- Example in SELECT
SELECT 
  claim_id,
  eff_onset_dt as effective_onset_date
FROM claims;

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