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.

LOINCActiveBoth

LOINC Code 49917-8: Lymphocyte proliferation stimulated by 10 umol beryllium 6 days post incubation (WBC) [Ratio]

Name: LOINC Code 49917-8: Lymphocyte proliferation stimulated by 10 umol beryllium 6 days post incubation (WBC) [Ratio]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:33.944Z

49917-8 is a LOINC code used to identify Lymphocyte proliferation stimulated by 10 umol beryllium 6 days post incubation (WBC) [Ratio] 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.10 umol beryllium stimulation^6D post incubation. It is commonly used with the system or sample type WBC.

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.10 umol beryllium stimulation^6D post incubation. It is commonly used with the system or sample type WBC.

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: Both

What it does not mean

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

Key facts

Lymphocyte proliferation stimulated by 10 umol beryllium [Ratio] in Leukocytes --6 days post incubation
Lymphocyte proliferation.10 umol beryllium stimulation^6D post incubation
After; Be; BeLPT; Berylliosis; Leukocytes; LPA; LPT; LPT 10 umol Be; LST; Lymphocyte antigen proliferation; Lymphocyte antigen stimulation; PHA; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; Ratios; Rto; Serology; Stim; WBCs; White blood cells

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 stimulated by 10 umol beryllium 6 days post incubation (WBC) [Ratio]Lymphocyte proliferation stimulated by 10 umol beryllium [Ratio] in Leukocytes --6 days post incubationLPT 10 umol Be 6D WBC-RtoLymphocyte proliferation.10 umol beryllium stimulation^6D post incubationSEROLymphocyte proliferation stimulated by 10 umol beryllium 6 days after Incubation, White blood cellsRatio

Frequently asked questions

Code details

Code49917-8

SystemLOINC

Display nameLymphocyte proliferation stimulated by 10 umol beryllium 6 days post incubation (WBC) [Ratio]

DescriptionLymphocyte proliferation.10 umol beryllium stimulation^6D post incubation

Short nameLPT 10 umol Be 6D WBC-Rto

ComponentLymphocyte proliferation.10 umol beryllium stimulation^6D post incubation

PropertyRatio

TimingPt

System (specimen)WBC

ScaleQn

ClassSERO

Example unitsratio

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.22

Last changed2.70

Consumer names

Lymphocyte proliferation stimulated by 10 umol beryllium 6 days after Incubation, White blood cells

Part names

Lymphocyte proliferation.10 umol beryllium stimulation^6D post incubationRatioPtWBCQnPoint in time (spot)White blood cells

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.