Immunoglobulin M (IgM), Plasma or Serum

Test Code
723


CPT Codes
82784

Preferred Specimen


Plasma
Container/Tube: Green-top (heparin) tube(s)
Specimen Volume: 3 mL (minimum volume: 0.5 mL) of plasma
Collection Instructions: Fasting
Note: 1. Indicate plasma.  2. Label specimen appropriately (plasma). 



Serum
Container/Tube: Serum gel tube(s)
Specimen Volume: 3 mL (minimum volume: 0.5 mL) of serum
Collection Instructions: Fasting
Note: 1. Indicate serum.
2. Label specimen appropriately (serum).
 




Minimum Volume
Pediatric volume: 0.5 mL


Transport Temperature
Refrigerate


Methodology
Nephelometry

Setup Schedule
Monday through Friday


Reference Range
Cord: 6.0-24.0 mg/dL
1-2 months: 19.0-83.0 mg/dL
2-3 months: 16.0-100.0 mg/dL
3-4 months: 23.0-85.0 mg/dL
4-5 months: 26.0-96.0 mg/dL
5-6 months: 31.0-103.0 mg/dL
6-7 months: 33.0-97.0 mg/dL
7-9 months: 32.0-120.0 mg/dL
10-12 months: 39.0-142.0 mg/dL
1-2 years: 41.0-164.0 mg/dL
2-3 years: 46.0-160.0 mg/dL
3-4 years: 45.0-190.0 mg/dL
4-5 years: 41.0-186.0 mg/dL
6-8 years: 46.0-197.0 mg/dL
9-10 years: 49.0-230.0 mg/dL
11-16 years: 49.0-252.0 mg/dL
>=17 years: 40.0-230.0 mg/dL


Clinical Significance
Useful for detecting or monitoring monoclonal gammopathies and immune deficiencies. 


Performed By
CoxHealth



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.