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LOINC Code 31219-9: A. felis IgM Qn (S)

31219-9 is a LOINC code used to identify A. felis IgM 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 Afipia felis Ab.IgM. 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 Afipia felis Ab.IgM. 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

What it does not mean

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

Key facts

  • Afipia felis IgM Ab [Units/volume] in Serum
  • Afipia felis Ab.IgM
  • A felis; ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Cat Scratch Disease; Cat Scratch Fever; ID; Immune globulin M; Immunoglobulin M; Infectious Disease; InfectiousDisease; Microbiology; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; 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

A. felis IgM Qn (S)Afipia felis IgM Ab [Units/volume] in SerumA felis IgM Ser-aCncAfipia felis Ab.IgMMICROAfipia felis IgM antibody, BloodACnc

Frequently asked questions

Code details

Code31219-9
SystemLOINC
Display nameA. felis IgM Qn (S)
DescriptionAfipia felis Ab.IgM
Short nameA felis IgM Ser-aCnc
ComponentAfipia felis Ab.IgM
PropertyACnc
TimingPt
System (specimen)Ser
ScaleQn
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.07
Last changed2.69

Consumer names

Afipia felis IgM antibody, Blood

Part names

Afipia felis Ab.IgMACncPtSerQnAfipia felis IgMArbitrary ConcentrationPoint in time (spot)Serum

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 31219-9 | HealthAssure