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 1871-3: Apolipoprotein B-100 [Mass/Vol]

Name: LOINC Code 1871-3: Apolipoprotein B-100 [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

1871-3 is a LOINC code used to identify Apolipoprotein B-100 [Mass/Vol] 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 Apolipoprotein B-100. It is commonly used with the system or sample type Ser/Plas.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Apolipoprotein B-100. It is commonly used with the system or sample type Ser/Plas.

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

Apolipoprotein B-100 [Mass/volume] in Serum or Plasma
Apolipoprotein B-100
APO; Apo B; Apo B100; ApoB; Apolipo; Apolipoprot; Apolipoproteins; Cardio; Cardiology; Chemistry; Heart Disease; Level; Mass concentration; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; UniversalLabOrders

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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Apolipoprotein B-100 [Mass/Vol] (1871-3)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Apolipoprotein B-100 [Mass/Vol]Apolipoprotein B-100 [Mass/volume] in Serum or PlasmaApo B100 SerPl-mCncApolipoprotein B-100CHEMApolipoprotein B-100, BloodMCnc

Frequently asked questions

Code details

Code1871-3

SystemLOINC

Display nameApolipoprotein B-100 [Mass/Vol]

DescriptionApolipoprotein B-100

Short nameApo B100 SerPl-mCnc

ComponentApolipoprotein B-100

PropertyMCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHEM

Example unitsmg/dL

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.73

Consumer names

Apolipoprotein B-100, Blood

Part names

Apolipoprotein B-100MCncPtSer/PlasQnMass ConcentrationPoint in time (spot)Serum or Plasma

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.