IgM-SD (1508)

Test Code
IGM-SD (1508)

Quest Code

CPT Codes

Preferred Specimen
1 mL serum 

Minimum Volume
0.5 mL

Serum should be separated immediately after clot

Transport Temperature
Refrigerated (cold packs)

Specimen Stability
Room temperature: 72 hours
Refrigerated: 7 days
Frozen: 90 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic • Grossly icteric


Setup Schedule

Set up: Tue-Sat; Report available: 1-3 days

Reference Range
Cord Blood <17 mg/dL
≤1 Month 13-54 mg/dL
2-5 Months 17-67 mg/dL
6-9 Months 23-84 mg/dL
10-12 Months 27-101 mg/dL
1-3 Years 26-218 mg/dL
4-6 Years 36-314 mg/dL
7-9 Years 47-311 mg/dL
10-11 Years 46-368 mg/dL
12-13 Years 52-367 mg/dL
14-15 Years 23-281 mg/dL
≥16 Years 48-271 mg/dL

Clinical Significance
Increased IgM is associated with Waldenström's macroglobulinemia, infectious mononucleosis, viral infections, nephrotic syndrome, and estrogen therapy; decreased IgM is found in selective IgM deficiency, Bruton's Disease, and acquired immune deficiency.

Performing Laboratory
Quest Diagnostics Nichols Institute
27027 Tourney Road
Valencia, CA 91355-5386

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.