Medication Administration Record

MAR

clinical

Updated 5/15/2026

Definition

A structured clinical record within EHR inpatient modules documenting each medication dose administered to a hospitalized patient, including drug name, dose, route, time, and administering nurse. MAR data is used in medication reconciliation workflows, adverse drug event detection algorithms, and nursing quality reporting within hospital information systems.

Standard Abbreviation

MAR

Database Usage

-- Example column naming
CREATE TABLE claims (
  clm_id VARCHAR(50),
  mar VARCHAR(100),  -- Medication Administration Record (max 100 chars)
  ...
);

-- Example in SELECT
SELECT
  clm_id,
  mar as medication_administration_record
FROM claims;

Common uses in healthcare data

Risk stratification and population health analytics
CMS-HCC risk adjustment and RAF score calculation
Quality measure attribution and HEDIS reporting
Clinical data warehouse schema design
Value-based care contract performance tracking

Example database column name

ISO-11179 snake_case standard

-- Recommended column name
mar

-- Example DDL
CREATE TABLE healthcare_data (
  record_id   VARCHAR(50)   NOT NULL,
  mar          VARCHAR(100),  -- Medication Administration Record (max 100 chars)
  created_dt  TIMESTAMP     NOT NULL DEFAULT NOW()
);

Column names follow the ISO-11179 naming convention: lowercase, underscore-separated, using the standard abbreviation as a prefix where applicable.

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