A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

IGA K/L HLC PAIRS WITH RATIO(O)

Test Code
IGA K/L HLC PAIRS WITH RATIO(O)


CPT Codes
83521

Preferred Specimen
Serum. 0.75 mL from Red-top tube or gel-barrier tube


Minimum Volume
0.5 mL


Instructions
Separate serum immediately after coagulation (30 minutes) to prevent hemolysis.


Specimen Stability
Temperature Period


Room temperature 14 days


Refrigerated 14 days


Frozen 14 days


Freeze/thaw cycles Stable x3



Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Microbially-contaminated specimen; specimen containing particulate matter; lipemic or hemolyzed specimen


Methodology
Turbidimetric

Report Available
4 - 6 days


Reference Range
• IgA κ (g/L): 0.48−2.82
• IgA λ (g/L): 0.36−1.98
• IgA κ:IgA λ ratio: 0.80−2.04


Clinical Significance
For the quantitative measurement of human IgA heavy chain and light chain intact immunoglobulin in serum. The result can be used when monitoring previously diagnosed IgA multiple myeloma patients and is used in conjunction with other clinical and laboratory findings.


Performing Laboratory
LabCorp

Additional Information
Click here

Last Updated: January 5, 2026


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.