Which statement best describes a Medical Record Number (MRN)?

Which statement best describes a Medical Record Number (MRN)?

• A. A unique alphanumeric identifier assigned by a provider.
• B. The permanent patient record number tied to the patient's history and information that does not change; assigned by the facility.
• C. A four-digit code used to classify billing levels.
• D. A national identifier used across facilities.

Answer: (B)

MRN is a permanent, patient-specific identifier tied to a patient’s chart within a single facility’s records. It’s created when the patient first registers and stays the same across all encounters, so every test, diagnosis, and note can be accurately linked to the same record. This designation is assigned by the facility, not by a single clinician, and it is not a nationwide identifier. It also isn’t a small four-digit code used for billing levels. So the best description is a permanent patient record number assigned by the facility that uniquely identifies the patient within that facility’s medical records.

MRN is a permanent, patient-specific identifier tied to a patient’s chart within a single facility’s records. It’s created when the patient first registers and stays the same across all encounters, so every test, diagnosis, and note can be accurately linked to the same record. This designation is assigned by the facility, not by a single clinician, and it is not a nationwide identifier. It also isn’t a small four-digit code used for billing levels. So the best description is a permanent patient record number assigned by the facility that uniquely identifies the patient within that facility’s medical records.