LOINCActiveObservation

LOINC Code 29040-3: Right eye KW impression code

29040-3 is a LOINC code used to identify Right eye KW impression code 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 KW impression code. 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 KW impression code. 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

What it does not mean

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

Key facts

  • Right eye KW impression code
  • KW impression code
  • Eye; EYE.RETINAL_RX; Eyeball; Imp; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Nominal; Occular; Oculis; Ophthalmologic; Ophthalmology; Ophtho; Ophthy; Optic globe; Point in time; R; R eye; Random; RT; 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 KW impression codeR eye KW impression codeKW impression codeEYE.RETINAL_RXImpPtEye.right

Frequently asked questions

Code details

Code29040-3
SystemLOINC
Display nameRight eye KW impression code
DescriptionKW impression code
Short nameR eye KW impression code
ComponentKW impression code
PropertyImp
TimingPt
System (specimen)Eye.right
ScaleNom
ClassEYE.RETINAL_RX
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.68

Part names

KW impression codeImpPtEye.rightNomImpression/interpretation of studyPoint in time (spot)Right eye

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 29040-3 | HealthAssure