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 5053-4: Aspergillus sp Ab CF (S) [Titer]

Name: LOINC Code 5053-4: Aspergillus sp Ab CF (S) [Titer]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

5053-4 is a LOINC code used to identify Aspergillus sp Ab CF (S) [Titer] 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 Aspergillus sp 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 Aspergillus sp 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

Aspergillus sp Ab [Titer] in Serum by Complement fixation
Aspergillus sp Ab
ABS; Aby; Antby; Anti; Antibodies; Antibody; Asperg; Aspergil; Aspergilis; Aspergilla; Aspergillin; Aspergillosis; Aspergils; Aspergilus; Autoantibodies; Autoantibody; CF; Comp fixation; Compfix; Complement fixation; Dilution factor; Dilution Factor (Titer); Farmers lung; ID; Infectious Disease; InfectiousDisease; Microbiology; Point in time; Random; Serum; SmQn; species; spp; SR; Titer; Titered; Titre; Ttr; UniversalLabOrders

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 Aspergillus sp Ab CF (S) [Titer] (5053-4)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Aspergillus sp Ab CF (S) [Titer]Aspergillus sp Ab [Titer] in Serum by Complement fixationAspergillus Ab Titr Ser CFAspergillus sp AbMICROAspergillus sp antibody, BloodTitr

Frequently asked questions

Code details

Code5053-4

SystemLOINC

Display nameAspergillus sp Ab CF (S) [Titer]

DescriptionAspergillus sp Ab

Short nameAspergillus Ab Titr Ser CF

ComponentAspergillus sp Ab

PropertyTitr

TimingPt

System (specimen)Ser

ScaleSemiQn

MethodComp fix

ClassMICRO

Example unitstiter

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.75

Consumer names

Aspergillus sp antibody, Blood

Part names

Aspergillus sp AbTitrPtSerSemiQnComp fixTiterPoint 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.