Homocysteine, Plasma

Test Code
LAB93


Alias/See Also
1231100194


CPT Codes
83090

Includes
HOMOCYSTEINE, PLASMA


Preferred Specimen
Purple top EDTA tube ON ICE!


Minimum Volume
5.0 mL plasma


Instructions
PUT SPECIMEN ON ICE!
NO GREEN TOP SODIUM HEPARIN
Must be centrifuged within 2 hours after collection and pulled off cells.


Specimen Stability
On ice: 6 hours
Refrigerated: 14 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimen not on ICE.


Methodology
Abbott Alinity

Reference Range
Males/Females:
7.61-16.20 umol/L


Performing Laboratory
LITTLE ROCK LABORATORY


Last Updated: August 26, 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.