LOINC Code 79794-4: ERG study standard procedure followed

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 Electroretinogram procedure standard followed. 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
• Order vs observation: Observation
• Method: Electroretinogram

What it does not mean

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

Key facts

• ERG study standard procedure followed
• Electroretinogram procedure standard followed
• This term was developed in collaboration with the National Institute of Health's National Eye Institute (NEI) as part of an effort to standardize the data elements collected by the National Ophthalmic Disease Genotyping and Phenotyping Network (eyeGENE).
• ERG; ERG proc standard followed; EYE; EYE.ERG; EYE.ERG.NEI; Nominal; Ophthalmology; Ophtho; Ophthy; Point in time; Random; Typ

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