LOINCActiveBoth

LOINC Code 51742-5: B. burgdorferi 49736 IgM IA Qn (S)

51742-5 is a LOINC code used to identify B. burgdorferi 49736 IgM IA 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 Borrelia burgdorferi 49736 Ab.IgM. 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 49736 Ab.IgM. 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: IA

What it does not mean

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

Key facts

  • Borrelia burgdorferi 49736 IgM Ab [Units/volume] in Serum by Immunoassay
  • Borrelia burgdorferi 49736 Ab.IgM
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; B burg; B burgdor; B burgdor 49736; B burgdorferi; Bb; Burgdorf; EIA; ELFA; ELISA; Enzyme immunoassay; IAA; ID; Immune globulin M; Immunoglobulin M; Infectious Disease; InfectiousDisease; Lyme; Lyme disease; Lymes; MEIA; Microbiology; Point in time; QNT; Quan; Quant; Quantitative; Random; 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 49736 IgM IA Qn (S)Borrelia burgdorferi 49736 IgM Ab [Units/volume] in Serum by ImmunoassayB burgdor 49736 IgM Ser IA-aCncBorrelia burgdorferi 49736 Ab.IgMMICROBorrelia burgdorferi 49736 IgM antibody, BloodACnc

Frequently asked questions

Code details

Code51742-5
SystemLOINC
Display nameB. burgdorferi 49736 IgM IA Qn (S)
DescriptionBorrelia burgdorferi 49736 Ab.IgM
Short nameB burgdor 49736 IgM Ser IA-aCnc
ComponentBorrelia burgdorferi 49736 Ab.IgM
PropertyACnc
TimingPt
System (specimen)Ser
ScaleQn
MethodIA
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.24
Last changed2.69

Consumer names

Borrelia burgdorferi 49736 IgM antibody, Blood

Part names

Borrelia burgdorferi 49736 Ab.IgMACncPtSerQnIABorrelia burgdorferi 49736 IgMArbitrary ConcentrationPoint in time (spot)SerumImmunoassay

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.