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 37992-5: Neutrophil cytoplasmic Ab.classic IA Qn (S)

Name: LOINC Code 37992-5: Neutrophil cytoplasmic Ab.classic IA Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:25.627Z

37992-5 is a LOINC code used to identify Neutrophil cytoplasmic Ab.classic IA Qn (S) 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 Neutrophil cytoplasmic Ab.classic. It is commonly used with the system or sample type Ser.

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 Neutrophil cytoplasmic Ab.classic. It is commonly used with the system or sample type Ser.

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
Method: IA

What it does not mean

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

Key facts

Neutrophil cytoplasmic Ab.classic [Units/volume] in Serum by Immunoassay
Neutrophil cytoplasmic Ab.classic
ACNA; ACPA; ANCA; Arbitrary Concentration; cANCA; c-ANCA; Cytopl; Cytoplas; Cytoplasmic ANCA; EIA; ELFA; ELISA; Enzyme immunoassay; Granulocyte ab; Granulocyte nucleus ab; IAA; MEIA; Neut; Neutr; Neutrophils; PMN; PNM; Point in time; QNT; Quan; Quant; Quantitative; Random; Serology; Serum; SR; SUDS; Vasculitis

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

Neutrophil cytoplasmic Ab.classic IA Qn (S)Neutrophil cytoplasmic Ab.classic [Units/volume] in Serum by Immunoassayc-ANCA Ser IA-aCncNeutrophil cytoplasmic Ab.classicSERONeutrophil Cytoplasmic Ab.classic, BloodACnc

Frequently asked questions

Code details

Code37992-5

SystemLOINC

Display nameNeutrophil cytoplasmic Ab.classic IA Qn (S)

DescriptionNeutrophil cytoplasmic Ab.classic

Short namec-ANCA Ser IA-aCnc

ComponentNeutrophil cytoplasmic Ab.classic

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

MethodIA

ClassSERO

Example unitsELISA units

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.13

Last changed2.70

Consumer names

Neutrophil Cytoplasmic Ab.classic, Blood

Part names

Neutrophil cytoplasmic Ab.classicACncPtSerQnIAArbitrary ConcentrationPoint in time (spot)SerumImmunoassay

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.