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Creatinine Kinase

Message
Creatine Kinase results > 100 U/L will have a reflex Creatine Kinase MB (CKMB) (CPT 82553) ordered at an additional charge.


Test Code
CK


CPT Codes
82550

Preferred Specimen
Serum Separator (Gold/Yellow) Tube


Minimum Volume
0.5 mL


Other Acceptable Specimens
Lithium Heparin Plasma Separator (Light Green) Tube


Transport Temperature
Refrigerated


Specimen Stability
Room Temperature: 4 hours
Refrigerated: 5 days
Frozen: 7 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis, Icterus, Lipemia


Reference Range
CK
Age Range  Sex Reference Low Reference High Units
0 minutes 150 years Male 35 232 U/L
0 minutes 150 years Female 40 200 U/L



Last Updated: September 16, 2022


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.