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effective start time

eff_start_tm
general
Updated 3/30/2026

Definition

The beginning time value for a coverage start validity. Used to track temporal information related to effective start time. 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_start_tm

Category

general

Database Usage

-- Example column naming
CREATE TABLE claims (
  claim_id VARCHAR(50),
  eff_start_tm VARCHAR(100),  -- effective start time
  ...
);

-- Example in SELECT
SELECT 
  claim_id,
  eff_start_tm as effective_start_time
FROM claims;

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