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 18401-0: Spermatozoa IgG Qn (Cervical mucus)

Name: LOINC Code 18401-0: Spermatozoa IgG Qn (Cervical mucus)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:27.588Z

18401-0 is a LOINC code used to identify Spermatozoa IgG Qn (Cervical mucus) 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 Spermatozoa Ab.IgG. It is commonly used with the system or sample type Cvm.

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 Spermatozoa Ab.IgG. It is commonly used with the system or sample type Cvm.

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

Spermatozoa IgG Ab [Units/volume] in Cervical mucus
Spermatozoa Ab.IgG
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Cerv mucus; Cervical mucus; FERTILITY TESTING; Genital tract; Immune globulin G; Immunoglobulin G; Point in time; QNT; Quan; Quant; Quantitative; Random; Sperm

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

Spermatozoa IgG Qn (Cervical mucus)Spermatozoa IgG Ab [Units/volume] in Cervical mucusSperm IgG Cerv mucus-aCncSpermatozoa Ab.IgGFERTSpermatozoa IgG antibody, Cervical mucusACnc

Frequently asked questions

Code details

Code18401-0

SystemLOINC

Display nameSpermatozoa IgG Qn (Cervical mucus)

DescriptionSpermatozoa Ab.IgG

Short nameSperm IgG Cerv mucus-aCnc

ComponentSpermatozoa Ab.IgG

PropertyACnc

TimingPt

System (specimen)Cvm

ScaleQn

ClassFERT

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0l

Last changed2.69

Consumer names

Spermatozoa IgG antibody, Cervical mucus

Part names

Spermatozoa Ab.IgGACncPtCvmQnSpermatozoa IgGArbitrary ConcentrationPoint in time (spot)Cervical mucus

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.