LOINCActiveObservation

LOINC Code 57723-9: Unique bar code number Nom (Current sample) [ID]

57723-9 is a LOINC code used to identify Unique bar code number Nom (Current 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 bar code number. It is commonly used with the system or sample type Current 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 bar code number. It is commonly used with the system or sample type Current 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 bar code number of Current sample
  • Unique bar code number
  • Ident; Identifier; No; Nominal; Num; Point in time; Random; SPEC; Unique bar code #

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 bar code number Nom (Current sample) [ID]Unique bar code number of Current sampleUnique bar code # Current sampleUnique bar code numberSPECUnique bar code number, Current SampleID

Frequently asked questions

Code details

Code57723-9
SystemLOINC
Display nameUnique bar code number Nom (Current sample) [ID]
DescriptionUnique bar code number
Short nameUnique bar code # Current sample
ComponentUnique bar code number
PropertyID
TimingPt
System (specimen)Current sample
ScaleNom
ClassSPEC
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.29
Last changed2.73

Consumer names

Unique bar code number, Current Sample

Part names

Unique bar code numberIDPtCurrent 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 57723-9 | HealthAssure