LOINCActiveObservation

LOINC Code 79825-6: Right cornea Central corneal thickness Pachymetry

79825-6 is a LOINC code used to identify Right cornea Central corneal thickness Pachymetry 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 Central corneal thickness. It is commonly used with the system or sample type Cornea.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 Central corneal thickness. It is commonly used with the system or sample type Cornea.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: Pachymetry

What it does not mean

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

Key facts

  • Right cornea Central corneal thickness Pachymetry
  • Central corneal thickness
  • 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).
  • Cent corn thickness; Corneal; EYE; EYE.PX; EYE.PX.NEI; Length; Ophthalmology; Ophtho; Ophthy; Point in time; QNT; Quan; Quant; Quantitative; R; R cornea; Random; RT; Thick

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 cornea Central corneal thickness PachymetryR cornea Cent corn thickness PachymetryCentral corneal thicknessEYE.PX.NEILenPtCornea.right

Frequently asked questions

Code details

Code79825-6
SystemLOINC
Display nameRight cornea Central corneal thickness Pachymetry
DescriptionCentral corneal thickness
Short nameR cornea Cent corn thickness Pachymetry
ComponentCentral corneal thickness
PropertyLen
TimingPt
System (specimen)Cornea.right
ScaleQn
MethodPachymetry
ClassEYE.PX.NEI
Example unitsum
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Part names

Central corneal thicknessLenPtCornea.rightQnPachymetryLengthPoint in time (spot)Right cornea

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 79825-6 | HealthAssure