LOINCActiveObservation

LOINC Code 89873-4: Unique identifier Nom (Initial sample) [ID]

89873-4 is a LOINC code used to identify Unique identifier Nom (Initial sample) [ID] 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 Unique identifier. It is commonly used with the system or sample type Initial sample.

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 Unique identifier. It is commonly used with the system or sample type Initial sample.

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

What it does not mean

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

Key facts

  • Unique identifier [Identifier] of Initial sample
  • Unique identifier
  • Ident; Identifier; Nominal; Point in time; Random; SPEC

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

Unique identifier Nom (Initial sample) [ID]Unique identifier [Identifier] of Initial sampleUnique ID Initial sampleUnique identifierSPECUnique identifier, Initial SampleID

Frequently asked questions

Code details

Code89873-4
SystemLOINC
Display nameUnique identifier Nom (Initial sample) [ID]
DescriptionUnique identifier
Short nameUnique ID Initial sample
ComponentUnique identifier
PropertyID
TimingPt
System (specimen)Initial sample
ScaleNom
ClassSPEC
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Unique identifier, Initial Sample

Part names

Unique identifierIDPtInitial sampleNomIdentifierPoint 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 89873-4 | HealthAssure