LOINCActiveBoth

LOINC Code 24139-8: Cockroach IgG Qn (S)

24139-8 is a LOINC code used to identify Cockroach IgG 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 Blatella germanica Ab.IgG. 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 Blatella germanica Ab.IgG. 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

  • Cockroach IgG Ab [Units/volume] in Serum
  • Blatella germanica Ab.IgG
  • ABS; Aby; Allergen; Allergens; ALLERGY TESTING; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; B germanica; Cockroach; German cockroach; i006; i6; Immune globulin G; Immunoglobulin G; Point in time; QNT; Quan; Quant; Quantitative; Random; Roach; Serum; SR; 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.

Common synonyms

Cockroach IgG Qn (S)Cockroach IgG Ab [Units/volume] in SerumRoach IgG QnBlatella germanica Ab.IgGALLERGYCockroach IgG antibodyACnc

Frequently asked questions

Code details

Code24139-8
SystemLOINC
Display nameCockroach IgG Qn (S)
DescriptionBlatella germanica Ab.IgG
Short nameRoach IgG Qn
ComponentBlatella germanica Ab.IgG
PropertyACnc
TimingPt
System (specimen)Ser
ScaleQn
ClassALLERGY
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0o
Last changed2.73

Consumer names

Cockroach IgG antibody

Part names

Blatella germanica Ab.IgGACncPtSerQnCockroach (Blatella germanica) IgGArbitrary 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 24139-8 | HealthAssure