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hematology effective date

hem_eff_dt
general
Updated 3/30/2026

Definition

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

Standard Abbreviation

hem_eff_dt

Category

general

Database Usage

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

-- Example in SELECT
SELECT 
  claim_id,
  hem_eff_dt as hematology_effective_date
FROM claims;

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