LOINC Code 79877-7: Visual acuity best corrected Left eye by ETDRS eye chart

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 Visual acuity^best corrected. It is commonly used with the system or sample type Eye.left.

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: ETDRS eye chart

What it does not mean

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

Key facts

• Visual acuity best corrected Left eye by ETDRS eye chart
• Visual acuity^best corrected
• 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).
• Eye; EYE.REFRACTION; EYE.REFRACTION.NEI; Eyeball; L; L eye; LT; Occular; Oculis; Ophthalmologic; Ophthalmology; Ophtho; Ophthy; Optic globe; Point in time; QNT; Quan; Quant; Quantitative; Random; Refraction; VA; Vision; Visual

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