LOINCActiveObservation

LOINC Code 79850-4: Right eye Sphere--W cycloplegia by Subjective refraction

79850-4 is a LOINC code used to identify Right eye Sphere--W cycloplegia by Subjective refraction 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^W cycloplegia. It is commonly used with the system or sample type Eye.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 Sphere^W cycloplegia. It is commonly used with the system or sample type Eye.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
  • Order vs observation: Observation
  • Method: Subjective refraction

What it does not mean

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

Key facts

  • Right eye Sphere--W cycloplegia by Subjective refraction
  • Sphere^W cycloplegia
  • This term was developed in collaboration with the National Institute of Health's National Eye Institute (NEI) as part of an effort to standardize the data elements collected by the National Ophthalmic Disease Genotyping and Phenotyping Network (eyeGENE).
  • Eye; EYE.REFRACTION; EYE.REFRACTION.NEI; Eyeball; Inverse Length; Occular; Oculis; Ophthalmologic; Ophthalmology; Ophtho; Ophthy; Optic globe; Point in time; QNT; Quan; Quant; Quantitative; R; R eye; Random; RT; Subj refraction; 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

Right eye Sphere--W cycloplegia by Subjective refractionR eye Sphere--W cyclo Subj refractionSphere^W cycloplegiaEYE.REFRACTION.NEIInvLenPtEye.right

Frequently asked questions

Code details

Code79850-4
SystemLOINC
Display nameRight eye Sphere--W cycloplegia by Subjective refraction
DescriptionSphere^W cycloplegia
Short nameR eye Sphere--W cyclo Subj refraction
ComponentSphere^W cycloplegia
PropertyInvLen
TimingPt
System (specimen)Eye.right
ScaleQn
MethodSubjective refraction
ClassEYE.REFRACTION.NEI
Example unitsDiopter
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.54
Last changed2.68

Part names

Sphere^W cycloplegiaInvLenPtEye.rightQnSubjective refractionInverse LengthPoint in time (spot)Right eyeby Subjective refraction

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 79850-4 | HealthAssure