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observation last name

obs_last_nm
general
Updated 3/30/2026

Definition

The family surname for a clinical finding or measurement. Used to display and describe the observation in a human-readable format. This field is commonly used in electronic health records (EHR), healthcare information systems (HIS), and clinical data warehouses for observation management and reporting.

Standard Abbreviation

obs_last_nm

Category

general

Database Usage

-- Example column naming
CREATE TABLE claims (
  claim_id VARCHAR(50),
  obs_last_nm VARCHAR(100),  -- observation last name
  ...
);

-- Example in SELECT
SELECT 
  claim_id,
  obs_last_nm as observation_last_name
FROM claims;

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