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.

LOINCActiveObservation

LOINC Code 45374-6: Specimen expiration date (Bld)

Name: LOINC Code 45374-6: Specimen expiration date (Bld)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:30.176Z

45374-6 is a LOINC code used to identify Specimen expiration date (Bld) 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 Specimen expiration date. It is commonly used with the system or sample type Bld.

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 Specimen expiration date. It is commonly used with the system or sample type Bld.

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

Specimen expiration date of Blood
Specimen expiration date
Date specimen is no longer suitable for testing
Blood; Exp; Point in time; QNT; Quan; Quant; Quantitative; Random; Spec; Specimen Exp Date; WB; Whole blood

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

Specimen expiration date (Bld)Specimen expiration date of BloodSpecimen Exp Date BldSpecimen expiration dateSPECSpecimen expiration date, BloodDate

Frequently asked questions

Code details

Code45374-6

SystemLOINC

Display nameSpecimen expiration date (Bld)

DescriptionSpecimen expiration date

Short nameSpecimen Exp Date Bld

ComponentSpecimen expiration date

PropertyDate

TimingPt

System (specimen)Bld

ScaleQn

ClassSPEC

Example unitsMMDDYY

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.17

Last changed2.73

Consumer names

Specimen expiration date, Blood

Part names

Specimen expiration dateDatePtBldQnPoint in time (spot)Blood

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.