LOINC Code 91586-8: Coding system Nom (Referral lab test) [ID]

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 Coding system. It is commonly used with the system or sample type Referral lab test.

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
• Order vs observation: Observation

What it does not mean

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

Key facts

• Coding system [Identifier] in Referral lab test
• Coding system
• Identifies the code system (e.g. LOINC, CPT, SNOMED CT, CDC) associated with the laboratory test name, identifier, and/or result.
• Ident; Identifier; MISC; Nominal; Point in time; Random; Ref Lab Test

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