What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCObservation

LOINC Code 89580-5: Laboratory device Coefficient of variation at 99th percentile URL

Name: LOINC Code 89580-5: Laboratory device Coefficient of variation at 99th percentile URL
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:18.536Z

89580-5 is a LOINC code used to identify Laboratory device Coefficient of variation at 99th percentile URL 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 Coefficient of variation at 99th percentile URL. It is commonly used with the system or sample type Laboratory device.

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 Coefficient of variation at 99th percentile URL. It is commonly used with the system or sample type Laboratory device.

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: TRIAL
Order vs observation: Observation

What it does not mean

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

Key facts

Laboratory device Coefficient of variation at 99th percentile URL
Coefficient of variation at 99th percentile URL
CV at 99% URL; Lab Device; Point in time; QNT; Quan; Quant; Quantitative; Random; Ratios; Rto

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

Laboratory device Coefficient of variation at 99th percentile URLLab Device CV at 99% URLCoefficient of variation at 99th percentile URLDEVICESRatioPtLaboratory device

Frequently asked questions

Code details

Code89580-5

SystemLOINC

Display nameLaboratory device Coefficient of variation at 99th percentile URL

DescriptionCoefficient of variation at 99th percentile URL

Short nameLab Device CV at 99% URL

ComponentCoefficient of variation at 99th percentile URL

PropertyRatio

TimingPt

System (specimen)Laboratory device

ScaleQn

ClassDEVICES

Example units%

StatusTRIAL

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.64

Last changed2.64

Part names

Coefficient of variation at 99th percentile URLRatioPtLaboratory deviceQnPoint in time (spot)

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.