LOINCObservation

LOINC Code 89581-3: Laboratory device 99th percentile URL

89581-3 is a LOINC code used to identify Laboratory device 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 99th percentile upper reference limit. 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 99th percentile upper reference limit. 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 99th percentile URL
  • 99th percentile upper reference limit
  • 99% URL; Arbitrary; Lab Device; Point in time; QNT; Quan; Quant; Quantitative; Random; Up

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 99th percentile URLLab Device 99% URL99th percentile upper reference limitDEVICESArbPtLaboratory device

Frequently asked questions

Code details

Code89581-3
SystemLOINC
Display nameLaboratory device 99th percentile URL
Description99th percentile upper reference limit
Short nameLab Device 99% URL
Component99th percentile upper reference limit
PropertyArb
TimingPt
System (specimen)Laboratory device
ScaleQn
ClassDEVICES
Example unitsng/L
StatusTRIAL
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.64
Last changed2.65

Part names

99th percentile upper reference limitArbPtLaboratory deviceQn99th percentile URLArbitraryPoint 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.

LOINC Code 89581-3 | HealthAssure