LOINCActiveBoth

LOINC Code 16637-1: C. immitis IgE Qn (S)

16637-1 is a LOINC code used to identify C. immitis IgE 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 Coccidioides immitis Ab.IgE. 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 Coccidioides immitis Ab.IgE. 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

  • Coccidioides immitis IgE Ab [Units/volume] in Serum
  • Coccidioides immitis Ab.IgE
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; B immitis; Blastomycoides immitis; C esteriformis; C immitis; Coccidioides esteriformis; Coccidiomycosis; Coccio; G immite; G louisianoideum; G metaeuropea; Geotrichum immite; Glenospora metaeuropea; Glenosporum louisianoideum; Immune globulin E; Immunoglobulin E; P esteriformis; P mazzai; Point in time; Posadasia esteriformis; Pseudococcidioides mazzai; QNT; Quan; Quant; Quantitative; Random; San Joaquin Valley fever; Serum; SR; T proteolyticum; Trichosporon proteolyticum; Valley fever

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

C. immitis IgE Qn (S)Coccidioides immitis IgE Ab [Units/volume] in SerumC immitis IgE QnCoccidioides immitis Ab.IgEALLERGYCoccidioides immitis allergy testACnc

Frequently asked questions

Code details

Code16637-1
SystemLOINC
Display nameC. immitis IgE Qn (S)
DescriptionCoccidioides immitis Ab.IgE
Short nameC immitis IgE Qn
ComponentCoccidioides immitis Ab.IgE
PropertyACnc
TimingPt
System (specimen)Ser
ScaleQn
ClassALLERGY
Example unitskIU/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.42

Consumer names

Coccidioides immitis allergy test

Part names

Coccidioides immitis Ab.IgEACncPtSerQnCoccidioides immitis IgEArbitrary 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 16637-1 | HealthAssure