LOINC Code 22020-2: Patient maiden name

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Maiden name. It is commonly used with the system or sample type ^Patient.

When is it used?

• Used in lab systems, EHRs, and clinical data exchange.
• May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
• Status: ACTIVE

What it does not mean

• The code identifies the observation or test, not the actual result.

Key facts

• Patient maiden name
• Maiden name
• Maiden name of female patients who are or have been married. This is used to link reports on a woman who changed her name between reports. It also is critical when using Spanish surname algorithms to categorize ethnicity. The field should be left blank if the maiden name is not known or not applicable. Since a value in this field may be used by linkage software or other computer algorithms, only legitimate surnames are allowable, and any variation of "unknown" or "not applicable" is not allowable... NAACCR Data Standards and Data Dictionary Version 11
• Nominal; Person name; Point in time; Random; TUMOR REGISTRY(NAACCR)

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Frequently asked questions