Back to search

history system identifier

hx_sys_id
general
Updated 3/30/2026

Definition

The system-generated unique id for a past medical events. Used as a unique reference to identify and track the history across healthcare systems. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for history management and reporting.

Standard Abbreviation

hx_sys_id

Category

general

Database Usage

-- Example column naming
CREATE TABLE claims (
  claim_id VARCHAR(50),
  hx_sys_id VARCHAR(100),  -- history system identifier
  ...
);

-- Example in SELECT
SELECT 
  claim_id,
  hx_sys_id as history_system_identifier
FROM claims;

Looking for more healthcare terms?

Browse our complete library of 65,000+ standardized healthcare data terms

Browse All Terms