LOINC Code 98455-9: Contrast ratio for intermediate visual acuity measurement by Phoropter

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 Contrast ratio for intermediate visual acuity measurement. It is commonly used with the system or sample type Eye.

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: Phoropter

What it does not mean

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

Key facts

• Contrast ratio for intermediate visual acuity measurement by Phoropter
• Contrast ratio for intermediate visual acuity measurement
• by Phoropter; c; Contr; Contra; Contrast for inter VA; Contrst; EYE.REFRACTION; Eyeball; Number fraction; Occular; Oculis; Ophthalmologic; Optic globe; Percent; 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