LOINCActive

LOINC Code 28842-3: Left glasses lens prescription Sphere far

28842-3 is a LOINC code used to identify Left glasses lens prescription Sphere far 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 Sphere far. It is commonly used with the system or sample type Glasses prescription.lens.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 Sphere far. It is commonly used with the system or sample type Glasses prescription.lens.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

What it does not mean

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

Key facts

  • Left glasses lens prescription Sphere far
  • Sphere far
  • Distance; EYE; EYE.GLASSES; Glasses Rx; Inverse Length; L; L glasses Rx; LT; Ophthalmology; Ophtho; Ophthy; Point in time; QNT; Quan; Quant; Quantitative; Random; 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

Left glasses lens prescription Sphere farL glasses Rx Sphere farSphere farEYE.GLASSESInvLenPtGlasses prescription.lens.left

Frequently asked questions

Code details

Code28842-3
SystemLOINC
Display nameLeft glasses lens prescription Sphere far
DescriptionSphere far
Short nameL glasses Rx Sphere far
ComponentSphere far
PropertyInvLen
TimingPt
System (specimen)Glasses prescription.lens.left
ScaleQn
ClassEYE.GLASSES
Example unitsDiopter
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

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

Part names

Sphere farInvLenPtGlasses prescription.lens.leftQnInverse LengthPoint in time (spot)Left 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 28842-3 | HealthAssure