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lab onset date

lab_onset_dt
general
Updated 3/30/2026

Definition

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

Standard Abbreviation

lab_onset_dt

Category

general

Database Usage

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

-- Example in SELECT
SELECT 
  claim_id,
  lab_onset_dt as lab_onset_date
FROM claims;

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