LOINCActiveObservation

LOINC Code 79787-8: b-wave implicit time Right retina light-adapted by ERG

79787-8 is a LOINC code used to identify b-wave implicit time Right retina light-adapted by ERG 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 b-wave implicit time^light-adapted. It is commonly used with the system or sample type Retina.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 b-wave implicit time^light-adapted. It is commonly used with the system or sample type Retina.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: Electroretinogram

What it does not mean

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

Key facts

  • b-wave implicit time Right retina light-adapted by ERG
  • b-wave implicit time^light-adapted
  • 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).
  • b-wave impl time; ERG; EYE; EYE.ERG; EYE.ERG.NEI; Ophthalmology; Ophtho; Ophthy; Point in time; QNT; Quan; Quant; Quantitative; R; R ret; Random; RT

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

b-wave implicit time Right retina light-adapted by ERGb-wave impl time R ret light-adapt ERGb-wave implicit time^light-adaptedEYE.ERG.NEITimePtRetina.right

Frequently asked questions

Code details

Code79787-8
SystemLOINC
Display nameb-wave implicit time Right retina light-adapted by ERG
Descriptionb-wave implicit time^light-adapted
Short nameb-wave impl time R ret light-adapt ERG
Componentb-wave implicit time^light-adapted
PropertyTime
TimingPt
System (specimen)Retina.right
ScaleQn
MethodElectroretinogram
ClassEYE.ERG.NEI
Example unitsms
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Part names

b-wave implicit time^light-adaptedTimePtRetina.rightQnElectroretinogramTime (e.g. seconds)Point in time (spot)Right retinaERG

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 79787-8 | HealthAssure