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 52978-4: VZV Ab CF Qn (S)

Name: LOINC Code 52978-4: VZV Ab CF Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

52978-4 is a LOINC code used to identify VZV Ab CF 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 Varicella zoster virus Ab. It is commonly used with the system or sample type Ser.

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 Varicella zoster virus Ab. 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: Comp fix

What it does not mean

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

Key facts

Varicella zoster virus Ab [Units/volume] in Serum by Complement fixation
Varicella zoster virus Ab
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; CF; Chicken pox; Chicken pox virus; Chickenpox; Comp fixation; Compfix; Complement fixation; Herpes zoster; HHV-3; Human herpesvirus 3; ID; Infectious Disease; InfectiousDisease; Microbiology; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; Shingles; SR; VZ; VZV; Zoster

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 VZV Ab CF Qn (S) (52978-4)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

VZV Ab CF Qn (S)Varicella zoster virus Ab [Units/volume] in Serum by Complement fixationVZV Ab Ser CF-aCncVaricella zoster virus AbMICROVaricella zoster virus (VZV; Chickenpox) antibody, BloodACnc

Frequently asked questions

Code details

Code52978-4

SystemLOINC

Display nameVZV Ab CF Qn (S)

DescriptionVaricella zoster virus Ab

Short nameVZV Ab Ser CF-aCnc

ComponentVaricella zoster virus Ab

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

MethodComp fix

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.24

Last changed2.69

Consumer names

Varicella zoster virus (VZV; Chickenpox) antibody, Blood

Part names

Varicella zoster virus AbACncPtSerQnComp fixArbitrary ConcentrationPoint in time (spot)SerumComplement fixation

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.