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 74952-3: Lymphocyte proliferation Nar (Bld) [Interp]

Name: LOINC Code 74952-3: Lymphocyte proliferation Nar (Bld) [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:55.156Z

74952-3 is a LOINC code used to identify Lymphocyte proliferation Nar (Bld) [Interp] 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 Lymphocyte proliferation. 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 Lymphocyte proliferation. 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

Lymphocyte proliferation [Interpretation] in Blood Narrative
Lymphocyte proliferation
Blood; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; LPA; LPT; LST; Lymphocyte antigen proliferation; Lymphocyte antigen stimulation; Narrative; PHA; Point in time; Random; Report; Serology; 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

Lymphocyte proliferation Nar (Bld) [Interp]Lymphocyte proliferation [Interpretation] in Blood NarrativeLymphocyte prolif Bld-Imp NarLymphocyte proliferationSEROInterpretation of Lymphocyte proliferation test result, BloodImp

Frequently asked questions

Code details

Code74952-3

SystemLOINC

Display nameLymphocyte proliferation Nar (Bld) [Interp]

DescriptionLymphocyte proliferation

Short nameLymphocyte prolif Bld-Imp Nar

ComponentLymphocyte proliferation

PropertyImp

TimingPt

System (specimen)Bld

ScaleNar

ClassSERO

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.48

Last changed2.50

Consumer names

Interpretation of Lymphocyte proliferation test result, Blood

Part names

Lymphocyte proliferationImpPtBldNarImpression/interpretation of studyPoint 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.