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 107604-1: Lymphocyte proliferation stimulated by tetanus toxoid (Bld) [#/Time]

Name: LOINC Code 107604-1: Lymphocyte proliferation stimulated by tetanus toxoid (Bld) [#/Time]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:20.215Z

107604-1 is a LOINC code used to identify Lymphocyte proliferation stimulated by tetanus toxoid (Bld) [#/Time] 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.tetanus toxoid stimulation. 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.tetanus toxoid stimulation. 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: Both

What it does not mean

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

Key facts

Lymphocyte proliferation stimulated by tetanus toxoid in Blood
Lymphocyte proliferation.tetanus toxoid stimulation
Blood; Count/time; LPA; LPT; LPT TT; LST; Lymphocyte antigen proliferation; Lymphocyte antigen stimulation; nRate; Number rate; Number Rate = Count/Time; PHA; Point in time; QNT; Quan; Quant; Quantitative; Random; Serology; Stim; 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 stimulated by tetanus toxoid (Bld) [#/Time]Lymphocyte proliferation stimulated by tetanus toxoid in BloodLPT TT Bld-nRateLymphocyte proliferation.tetanus toxoid stimulationSEROLymphocyte proliferation stimulated by tetanus toxoid, BloodNRat

Frequently asked questions

Code details

Code107604-1

SystemLOINC

Display nameLymphocyte proliferation stimulated by tetanus toxoid (Bld) [#/Time]

DescriptionLymphocyte proliferation.tetanus toxoid stimulation

Short nameLPT TT Bld-nRate

ComponentLymphocyte proliferation.tetanus toxoid stimulation

PropertyNRat

TimingPt

System (specimen)Bld

ScaleQn

ClassSERO

Example units/min

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.81

Last changed2.81

Consumer names

Lymphocyte proliferation stimulated by tetanus toxoid, Blood

Part names

Lymphocyte proliferation.tetanus toxoid stimulationNRatPtBldQnLymphocyte proliferation tetanus toxoid stimulationNumber RatePoint 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.