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substitution effective date

sub_eff_dt
general
Updated 3/30/2026

Definition

The active beginning date for a alternative medication. Used to track temporal information related to substitution effective date. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for substitution management and reporting.

Standard Abbreviation

sub_eff_dt

Category

general

Database Usage

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

-- Example in SELECT
SELECT 
  claim_id,
  sub_eff_dt as substitution_effective_date
FROM claims;

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