LOINCActiveObservation

LOINC Code 98464-1: Left eye Prism near by Phoropter

98464-1 is a LOINC code used to identify Left eye Prism near by Phoropter in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Prism near. It is commonly used with the system or sample type Eye.left.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

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 Prism near. 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: Phoropter

What it does not mean

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

Key facts

  • Left eye Prism near by Phoropter
  • Prism near
  • by Phoropter; Eye; EYE.REFRACTION; Eyeball; Inverse Length; L; L eye; LT; Occular; Oculis; Ophthalmologic; Ophthalmology; Ophtho; Ophthy; Optic globe; Point in time; QNT; Quan; Quant; Quantitative; Random; 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

Left eye Prism near by PhoropterL eye Prism near by PhoropterPrism nearEYE.REFRACTIONInvLenPtEye.left

Frequently asked questions

Code details

Code98464-1
SystemLOINC
Display nameLeft eye Prism near by Phoropter
DescriptionPrism near
Short nameL eye Prism near by Phoropter
ComponentPrism near
PropertyInvLen
TimingPt
System (specimen)Eye.left
ScaleQn
MethodPhoropter
ClassEYE.REFRACTION
Example unitsprism diopter
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.71
Last changed2.71

Part names

Prism nearInvLenPtEye.leftQnPhoropterInverse LengthPoint in time (spot)Left eye

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

LOINC Code 98464-1 | HealthAssure