LOINCActive

LOINC Code 55977-3: Left corrective lens Sphere far by Lensmeter

55977-3 is a LOINC code used to identify Left corrective lens Sphere far by Lensmeter 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 Sphere far. It is commonly used with the system or sample type Corrective lens.left.

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 Sphere far. It is commonly used with the system or sample type Corrective lens.left.

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: Lensmeter

What it does not mean

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

Key facts

  • Left corrective lens Sphere far by Lensmeter
  • Sphere far
  • by LM; Corr lens; Distance; EYE; EYE.GLASSES; Focimeter; Inverse Length; L; L corr lens; Lensometer; LM; LT; Ophthalmology; Ophtho; Ophthy; Point in time; QNT; Quan; Quant; Quantitative; Random

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

Left corrective lens Sphere far by LensmeterL corr lens Sphere far by LMSphere farEYE.GLASSESInvLenPtCorrective lens.left

Frequently asked questions

Code details

Code55977-3
SystemLOINC
Display nameLeft corrective lens Sphere far by Lensmeter
DescriptionSphere far
Short nameL corr lens Sphere far by LM
ComponentSphere far
PropertyInvLen
TimingPt
System (specimen)Corrective lens.left
ScaleQn
MethodLensmeter
ClassEYE.GLASSES
Example unitsDiopter
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.29
Last changed2.71

Part names

Sphere farInvLenPtCorrective lens.leftQnLensmeterInverse LengthPoint in time (spot)Left corrective lens

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 55977-3 | HealthAssure