Cytomegalovirus IgM Antibody


  • EPIC Code:
  • IMO66
  • Soft Test Code:
  • CMVM
Alternate Names
  • CMV IgM

Specimen Collection & Preparation

Specimen Requirements

1.0 mL Serum in a SST Gold Top Tube

Alternate Specimen

1.0 mL Serum from a Red Top Tube in a Plastic Vial


48 hours Refrigerated
30 days Frozen

Specimen to be transported Refrigerated to PRMC within 48 hours of collection to be frozen by Immunology department to maintain specimen integrity until testing occurs. Do not transport Frozen.

Collection Instructions


Minimum Volume

Neonatal Volumne

Clinical Interpretation

Reference Range:

OD ratio < .90 indicates no detectable Cytomegalovirus, IgM antibody.
OD ratio 0.91 - 1.09 are equivocal for Cytomegalovirus, IgM antibody. Suggest a new specimen be collected and retested.
OD ratio > 1.10 is positive for Cytomegalovirus, IgM antibody. A positive value indicates a primary or reactivated infection.

  • Enzyme Immunoassay (EIA)

Production Schedule

Sites Performed
  • Parkview Regional Medical Center
Days Performed
  • Immunology
Turn Around Time

7 days

Coding & Compliance



CPT Coding


Medical Necessity Documentation

Duplicate testing on this test is not acceptable per Medicare:  Testing to only be done every 3 days