What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 98817-0: Eye Meter angle for near point convergence by Phoropter

Name: LOINC Code 98817-0: Eye Meter angle for near point convergence by Phoropter
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:33.063Z

98817-0 is a LOINC code used to identify Eye Meter angle for near point convergence 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 Meter angle for near point convergence. It is commonly used with the system or sample type Eye.

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 Meter angle for near point convergence. 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

Eye Meter angle for near point convergence by Phoropter
Meter angle for near point convergence
Arbitrary; by Phoropter; EYE.REFRACTION; Eyeball; MA for NPC; Occular; Oculis; Ophthalmologic; 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

Eye Meter angle for near point convergence by PhoropterEye MA for NPC by PhoropterMeter angle for near point convergenceEYE.REFRACTIONArbPtEye

Frequently asked questions

Code details

Code98817-0

SystemLOINC

Display nameEye Meter angle for near point convergence by Phoropter

DescriptionMeter angle for near point convergence

Short nameEye MA for NPC by Phoropter

ComponentMeter angle for near point convergence

PropertyArb

TimingPt

System (specimen)Eye

ScaleQn

MethodPhoropter

ClassEYE.REFRACTION

Example unitsmeter angle

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.72

Last changed2.75

Part names

Meter angle for near point convergenceArbPtEyeQnPhoropterArbitraryPoint in time (spot)

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.