ALTĀ  Alanine Aminotransferase (GPT)

Test Code

CPT Codes

Preferred Specimen

Centrifuge PST or SSTĀ (after clotting) to separate serum from cells.

Transport Container
SST or PST for Chemistry

Transport Temperature
Room Temperature or refrigerated.

Siemens Advia 1800

Reference Range
3-49 IU/L

Clinical Significance
The ALT test detects liver injury. ALT values are usually compared to the levels of other enzymes, such as alkaline phosphatase (ALP) and aspartate aminotransferase (AST), to help determine which form of liver disease is present.

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.