LOINCActive

LOINC Code 28977-7: Right cornea Axis 2 by Keratometry

28977-7 is a LOINC code used to identify Right cornea Axis 2 by Keratometry 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 Axis 2. 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 Axis 2. 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
  • Method: Keratometry

What it does not mean

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

Key facts

  • Right cornea Axis 2 by Keratometry
  • Axis 2
  • by KM; Corneal; EYE; EYE.REFRACTION; II; Ophthalmology; Ophthalmometer; Ophtho; Ophthy; Point in time; QNT; Quan; Quant; Quantitative; R; R cornea; 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

Right cornea Axis 2 by KeratometryR cornea Axis 2 by KMAxis 2EYE.REFRACTIONAnglePtCornea.right

Frequently asked questions

Code details

Code28977-7
SystemLOINC
Display nameRight cornea Axis 2 by Keratometry
DescriptionAxis 2
Short nameR cornea Axis 2 by KM
ComponentAxis 2
PropertyAngle
TimingPt
System (specimen)Cornea.right
ScaleQn
MethodKeratometry
ClassEYE.REFRACTION
Example unitsdeg
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.70

Part names

Axis 2AnglePtCornea.rightQnKeratometryPoint 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 28977-7 | HealthAssure