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 #

Blood Urea Nitrogen Serum/Plasma

Test Code
BUN


CPT Codes
84520

Preferred Specimen
Light Green (Lithium) Gel or Gold Top Tube


Specimen Stability
7 days


Report Available
Same day


Clinical Significance
In vitro diagnostic test for the quantitative measurement of urea nitrogen in serum, used in diagnosis and treatment of certain renal and metabolic diseases.  Increased levels may be due to prerenal, renal, or post renal causes.




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.