Borrelia burgdorferi Ab.IgM

OtherAlso known as: B burgdor IgM CSF IA-aCncAlso known as: B burgdor IgM CSF IB-aCncAlso known as: B burgdor IgM CSF IF-aCncN/A

Detects early-stage IgM antibodies against Lyme disease bacteria in serum or plasma.

Normal Range
Consult your provider
N/A
Abnormal Levels
Consult your provider
Specimen Type
Blood

Why This Biomarker Matters

Identifies active or recent Lyme disease affecting the nervous system, enabling prompt antibiotic treatment to prevent serious neurological complications.

Overview

This test detects IgM antibodies against Borrelia burgdorferi in serum or plasma, indicating acute or recent Lyme disease infection. IgM antibodies typically appear within 1-2 weeks of a tick bite and peak around 3-6 weeks. A positive result in the appropriate clinical context (erythema migrans rash, tick exposure, endemic area) supports early Lyme disease diagnosis. Testing follows the CDC-recommended two-tier protocol: initial ELISA screening followed by confirmatory Western blot. IgM results should be interpreted cautiously after 30 days of symptoms, as persistent IgM alone may represent a false positive.

Technical Information (LOINC Codes)

Standardized laboratory codes for this biomarker

40612-4Primary
Borrelia burgdorferi IgM Ab [Presence] in Serum or Plasma by Immunoassay
5064-1
Borrelia burgdorferi IgM Ab [Units/volume] in Serum by Immunoassay
{Index_val}
13205-0
Borrelia burgdorferi IgM Ab [Units/volume] in Cerebral spinal fluid by Immunofluorescence
[arb'U]/mL
30526-8
Borrelia burgdorferi IgM Ab [Presence] in Serum by Immunofluorescence
14078-0
Borrelia burgdorferi IgM Ab [Units/volume] in Cerebral spinal fluid by Immunoassay
[arb'U]/mL
5065-8
Borrelia burgdorferi IgM Ab [Titer] in Serum by Immunofluorescence
{titer}
23984-8
Borrelia burgdorferi IgM Ab [Titer] in Cerebral spinal fluid by Immunofluorescence
{titer}
22133-3
Borrelia burgdorferi IgM Ab [Units/volume] in Cerebral spinal fluid
[arb'U]/mL
22135-8
Borrelia burgdorferi IgM Ab [Presence] in Serum
16482-2
Borrelia burgdorferi IgM Ab [Units/volume] in Body fluid by Immunoassay
[arb'U]/mL
13203-5
Borrelia burgdorferi IgM Ab [Presence] in Cerebral spinal fluid by Immunoblot
23982-2
Borrelia burgdorferi IgM Ab [Presence] in Body fluid by Immunoblot
7818-8
Borrelia burgdorferi IgM Ab [Units/volume] in Serum
[arb'U]/mL
6321-4
Borrelia burgdorferi IgM Ab [Presence] in Serum by Immunoblot
22134-1
Borrelia burgdorferi IgM Ab [Units/volume] in Body fluid
[arb'U]/mL
31269-4
Borrelia burgdorferi IgM Ab [Presence] in Body fluid
22132-5
Borrelia burgdorferi IgM Ab [Presence] in Cerebral spinal fluid
43076-9
Borrelia burgdorferi IgM Ab [Titer] in Cerebral spinal fluid
{titer}
43573-5
Borrelia burgdorferi IgM Ab [Units/volume] in Cerebral spinal fluid by Immunoblot
[arb'U]/mL
21119-3
Borrelia burgdorferi IgM Ab [Presence] in Synovial fluid by Immunoassay
13207-6
Borrelia burgdorferi IgM Ab [Presence] in Synovial fluid by Immunoblot
96427-0
Borrelia burgdorferi IgM Ab [Presence] in Specimen
22137-4
Borrelia burgdorferi IgM Ab [Titer] in Serum
{titer}
98208-2
Borrelia burgdorferi IgM Ab [Presence] in Cerebral spinal fluid by Immunoassay
22136-6
Borrelia burgdorferi IgM Ab [Presence] in Synovial fluid

Available Lab Tests

Order tests that measure this biomarker

lyme disease antibody test with reflex to blot igg igm

$61.47