LOINCActive

LOINC Code 28829-0: Right glasses lens prescription Prism base direction

28829-0 is a LOINC code used to identify Right glasses lens prescription Prism base direction 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 base direction. It is commonly used with the system or sample type Glasses prescription.lens.right.

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 base direction. It is commonly used with the system or sample type Glasses prescription.lens.right.

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

What it does not mean

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

Key facts

  • Right glasses lens prescription Prism base direction
  • Prism base direction
  • EYE; EYE.GLASSES; Glasses Rx; Ophthalmology; Ophtho; Ophthy; Point in time; QNT; Quan; Quant; Quantitative; R; R glasses Rx; Random; RT; Rx

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

Right glasses lens prescription Prism base directionR glasses Rx Prism base dirPrism base directionEYE.GLASSESAnglePtGlasses prescription.lens.right

Frequently asked questions

Code details

Code28829-0
SystemLOINC
Display nameRight glasses lens prescription Prism base direction
DescriptionPrism base direction
Short nameR glasses Rx Prism base dir
ComponentPrism base direction
PropertyAngle
TimingPt
System (specimen)Glasses prescription.lens.right
ScaleQn
ClassEYE.GLASSES
Example unitsdeg
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.71

Part names

Prism base directionAnglePtGlasses prescription.lens.rightQnPoint in time (spot)Right glasses lens prescription

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 28829-0 | HealthAssure