LOINCBoth

LOINC Code 46120-2: B. burgdorferi 41kD IgG EIA Ql (S)

46120-2 is a LOINC code used to identify B. burgdorferi 41kD IgG EIA 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 Borrelia burgdorferi 41kD 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 Borrelia burgdorferi 41kD 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: DEPRECATED
  • Order vs observation: Both
  • Method: EIA

What it does not mean

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

Key facts

  • Deprecated Borrelia burgdorferi 41kD IgG Ab [Presence] in Serum by Immunoassay
  • Borrelia burgdorferi 41kD Ab.IgG
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; B burg; B burgdor; B burgdor41kD; B burgdorferi; Bb; Burgdorf; ELFA; ELISA; Enzyme immunoassay; IAA; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; Lyme; Lyme disease; Lymes; MEIA; Microbiology; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen; Serum; SR; SUDS

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

B. burgdorferi 41kD IgG EIA Ql (S)Deprecated Borrelia burgdorferi 41kD IgG Ab [Presence] in Serum by ImmunoassayDeprecated B burgdor41kD IgG Ser Ql EIABorrelia burgdorferi 41kD Ab.IgGMICROBorrelia burgdorferi 41kD IgG antibody, BloodACnc

Frequently asked questions

Code details

Code46120-2
SystemLOINC
Display nameB. burgdorferi 41kD IgG EIA Ql (S)
DescriptionBorrelia burgdorferi 41kD Ab.IgG
Short nameDeprecated B burgdor41kD IgG Ser Ql EIA
ComponentBorrelia burgdorferi 41kD Ab.IgG
PropertyACnc
TimingPt
System (specimen)Ser
ScaleOrd
MethodEIA
ClassMICRO
StatusDEPRECATED
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.17
Last changed2.36

Consumer names

Borrelia burgdorferi 41kD IgG antibody, Blood

Part names

Borrelia burgdorferi 41kD Ab.IgGACncPtSerOrdEIABorrelia burgdorferi 41kD IgGArbitrary ConcentrationPoint in time (spot)SerumImmunoassay (EIA)

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 46120-2 | HealthAssure