MRN

Medical abbreviation · Medical Documentation

MRN
Stands forMedical record number
CategoriesMedical

MRN stands for Medical record number, a medical documentation abbreviation.

Unique identifier assigned by a hospital or health system to each patient, used on wristbands, labels, orders and records. It links all of a patient's encounters within the organization.

Example: Verify name, DOB and MRN on specimen label before sending to lab.

Usage notes

Two identifiers, such as name and date of birth, are required before treatments or tests, a Joint Commission patient safety goal; MRN is a common second identifier. Different hospitals assign different MRNs, so merged records can create duplicates. Encounter or visit numbers differ from the MRN.

More medical documentation abbreviations

  • ISBAR – Identify, Situation, Background, Assessment, Recommendation
  • IVDA – Intravenous drug abuse
  • IVDU – Intravenous drug use
  • Ix – Investigations
  • LOS – Length of stay
  • MDM – Medical decision making
  • Mx – Management
  • N/V/D – Nausea, vomiting, diarrhea
  • NFA – No further action
  • NOK – Next of kin
  • NOS – Not otherwise specified
  • O/E – On examination

See all 79 medical documentation abbreviations →

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.