LOINCActiveBoth

LOINC Code 18400-2: Spermatozoa IgA Qn (Cervical mucus)

18400-2 is a LOINC code used to identify Spermatozoa IgA 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.IgA. 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.IgA. 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 IgA Ab [Units/volume] in Cervical mucus
  • Spermatozoa Ab.IgA
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Cerv mucus; Cervical mucus; FERTILITY TESTING; Genital tract; Immune globulin A; Immunoglobulin A; 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 IgA Qn (Cervical mucus)Spermatozoa IgA Ab [Units/volume] in Cervical mucusSperm IgA Cerv mucus-aCncSpermatozoa Ab.IgAFERTSpermatozoa IgA antibody, Cervical mucusACnc

Frequently asked questions

Code details

Code18400-2
SystemLOINC
Display nameSpermatozoa IgA Qn (Cervical mucus)
DescriptionSpermatozoa Ab.IgA
Short nameSperm IgA Cerv mucus-aCnc
ComponentSpermatozoa Ab.IgA
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 IgA antibody, Cervical mucus

Part names

Spermatozoa Ab.IgAACncPtCvmQnSpermatozoa IgAArbitrary 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.

LOINC Code 18400-2 | HealthAssure