LOINCActiveBoth

LOINC Code 57033-3: A. alternata Ab Immune diff Ql (S)

57033-3 is a LOINC code used to identify A. alternata Ab Immune diff Ql (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 Alternaria alternata 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 Alternaria alternata 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: Immune diffusion

What it does not mean

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

Key facts

  • Alternaria alternata Ab [Presence] in Serum by Immune diffusion (ID)
  • Alternaria alternata Ab
  • A alternata; A tenuis; ABS; Aby; Alternaria tenuis; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; ID; Imm; Immunodiff; Immunodiffusion; Imun; Imune; Infectious Disease; InfectiousDisease; m006; m6; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; 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. alternata Ab Immune diff Ql (S)Alternaria alternata Ab [Presence] in Serum by Immune diffusion (ID)A alternata Ab Ser Ql IDAlternaria alternata AbMICROAlternaria alternata antibody, BloodPrThr

Frequently asked questions

Code details

Code57033-3
SystemLOINC
Display nameA. alternata Ab Immune diff Ql (S)
DescriptionAlternaria alternata Ab
Short nameA alternata Ab Ser Ql ID
ComponentAlternaria alternata Ab
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
MethodImmune diffusion
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.29
Last changed2.56

Consumer names

Alternaria alternata antibody, Blood

Part names

Alternaria alternata AbPrThrPtSerOrdImmune diffusionPresence or ThresholdPoint in time (spot)SerumImmune diffusion (ID)

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 57033-3 | HealthAssure