LOINCActiveObservation

LOINC Code 79841-3: Type of Objective refraction method

79841-3 is a LOINC code used to identify Type of Objective refraction method 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 Objective refraction method. It is commonly used with the system or sample type Eyes.

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 Objective refraction method. It is commonly used with the system or sample type Eyes.

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

What it does not mean

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

Key facts

  • Type of Objective refraction method
  • Objective refraction method
  • 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; Meth; Method of; Nominal; Obj refract method; Ophthalmologic; Ophthalmology; Ophtho; Ophthy; Point in time; Random; Refract method; Typ; 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

Type of Objective refraction methodType of Obj refract methodObjective refraction methodEYE.REFRACTION.NEITypePtEyes

Frequently asked questions

Code details

Code79841-3
SystemLOINC
Display nameType of Objective refraction method
DescriptionObjective refraction method
Short nameType of Obj refract method
ComponentObjective refraction method
PropertyType
TimingPt
System (specimen)Eyes
ScaleNom
ClassEYE.REFRACTION.NEI
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Part names

Objective refraction methodTypePtEyesNomPoint 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.

LOINC Code 79841-3 | HealthAssure