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 53842-1: Basement membrane zone BP180 IgG Qn

Name: LOINC Code 53842-1: Basement membrane zone BP180 IgG Qn
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:36.581Z

53842-1 is a LOINC code used to identify Basement membrane zone BP180 IgG Qn 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 Basement membrane zone BP180 Ab.IgG. It is commonly used with the system or sample type Ser/Plas.

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 Basement membrane zone BP180 Ab.IgG. 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

Basement membrane zone BP180 IgG Ab [Units/volume] in Serum or Plasma
Basement membrane zone BP180 Ab.IgG
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Basem; Basemt; BM; BMZ; BMZ BP180; Immune globulin G; Immunoglobulin G; Pemphigoid; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; Serology; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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

Basement membrane zone BP180 IgG QnBasement membrane zone BP180 IgG Ab [Units/volume] in Serum or PlasmaBMZ BP180 IgG SerPl-aCncBasement membrane zone BP180 Ab.IgGSEROBasement Membrane Zone BP180 IgG antibody, BloodACnc

Frequently asked questions

Code details

Code53842-1

SystemLOINC

Display nameBasement membrane zone BP180 IgG Qn

DescriptionBasement membrane zone BP180 Ab.IgG

Short nameBMZ BP180 IgG SerPl-aCnc

ComponentBasement membrane zone BP180 Ab.IgG

PropertyACnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassSERO

Example unitsarb U/mL

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.26

Last changed2.73

Consumer names

Basement Membrane Zone BP180 IgG antibody, Blood

Part names

Basement membrane zone BP180 Ab.IgGACncPtSer/PlasQnBasement membrane zone BP180 IgGArbitrary 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.