Laboratory services for a creatinine blood test.

a. what is the main term used in the alphabetic index of the cpt coding manual?

The alphabetical code for creatinine test is 82565.

Measurement of creatinine gives information on the renal function and the muscle mass of the patient. Creatinine is produced from creatine, an essential molecule for the production of energy in muscles. Normally, creatinine is carried by the blood and then eliminated by the kidneys in the urine. The increase in this rate in the blood (plasma or serum level) goes hand in hand with a reduction in renal function.