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protocol onset date

proto_onset_dt
general
Updated 3/30/2026

Definition

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

Standard Abbreviation

proto_onset_dt

Category

general

Database Usage

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

-- Example in SELECT
SELECT 
  claim_id,
  proto_onset_dt as protocol_onset_date
FROM claims;

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