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.

LOINCBoth

LOINC Code 33377-3: Blastomyces sp Ab CF Ql (S)

Name: LOINC Code 33377-3: Blastomyces sp Ab CF Ql (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:20.068Z

33377-3 is a LOINC code used to identify Blastomyces sp Ab CF 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 Blastomyces sp Ab. It is commonly used with the system or sample type Ser.

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 Blastomyces 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: DEPRECATED
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

Deprecated Blastomyces dermatitidis Ab [Presence] in Serum by Complement fixation
Blastomyces sp Ab
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Blasto; Blastomycosis; CF; Comp fixation; Compfix; Complement fixation; ID; Infectious Disease; InfectiousDisease; Microbiology; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen; Serum; species; spp; 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

Blastomyces sp Ab CF Ql (S)Deprecated Blastomyces dermatitidis Ab [Presence] in Serum by Complement fixationDeprecated Blastomyces Ab Ser Ql CFBlastomyces sp AbMICROBlastomyces sp antibody, BloodACnc

Frequently asked questions

Code details

Code33377-3

SystemLOINC

Display nameBlastomyces sp Ab CF Ql (S)

DescriptionBlastomyces sp Ab

Short nameDeprecated Blastomyces Ab Ser Ql CF

ComponentBlastomyces sp Ab

PropertyACnc

TimingPt

System (specimen)Ser

ScaleOrd

MethodComp fix

ClassMICRO

StatusDEPRECATED

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.09

Last changed2.36

Consumer names

Blastomyces sp antibody, Blood

Part names

Blastomyces sp AbACncPtSerOrdComp fixArbitrary ConcentrationPoint 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.