Cleveland Heartlab I, Test

CPT Code: 82784
Order Code: C1362
ABN Requirement: No
Synonyms: Immunoglobulin A
Specimen: Serum
Volume:  1.0 mL
Minimum Volume:  0.5 mL
Container: Gel-barrier tube (SST, Tiger Top)



  1. Collect and label sample according to standard protocols.
  2. Gently invert tube 5 times immediately after draw. DO NOT SHAKE.
  3. Let tube stand in a vertical position to allow blood to clot 30 minutes.
  4. Centrifuge for 10 minutes.

Transport: Store serum at 2-8°C after collection and ship the same day per packaging instructions  included with the provided shipping box.


Ambient (15-25°C): 72 hours
Refrigerated (2-8°C):
7 days
Frozen (-20°C):
90 days

Causes for Rejection: Specimens other than serum; improper labeling; samples not stored properly; samples older than stability limits; gross lipemia

Methodology: Immunoturbidimetric

Turn Around Time: 2 to 3 days

Reference Range:

Coord Blood1-3
1-28 days2-40
1-3 months3-40
4-6 months7-47
7-11 months12-53
1 year20-73
2 years20-99
3-5 years22-140
6-8 years31-180
9-11 years33-200
12-16 years36-220
17-60 years47-310
61 years or older70-320

Clinical Significance: Increased IgA is associated with monoclonal IgA myeloma, respiratory and gastrointestinal infections, and malabsorption; decreased IgA is found in selective IgA deficiency and in ataxia telangiectasia.

The CPT codes provided 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 payer being billed.