CPT® Code 84488

1. Indications

The qualitative fecal trypsin test (CPT® Code 84488) is indicated for the following conditions:

• Exocrine Pancreatic Insufficiency This test is performed to evaluate the function of the exocrine pancreas, particularly when there is suspicion of insufficient trypsin production, which may be due to chronic pancreatitis.
• Cystic Fibrosis Screening The test is also indicated for symptomatic newborns and infants as a screening tool for cystic fibrosis, where the formation of mucous plugs in the pancreatic ducts can obstruct the flow of trypsinogen into the small intestine.

2. Procedure

The procedure for conducting the qualitative fecal trypsin test involves several key steps:

• Specimen Collection A random stool specimen is collected from the patient. It is essential that the specimen is obtained in a manner that prevents contamination and preserves the integrity of the sample for accurate testing.
• Testing Method The collected stool sample is then subjected to a semi-quantitative film digestion method. This technique allows for the assessment of trypsin levels in the feces, providing a qualitative result that indicates the presence or absence of trypsin.

3. Post-Procedure

After the fecal trypsin test is completed, the results are analyzed and reported. If decreased levels of trypsin are detected, further evaluation may be warranted to determine the underlying cause, such as chronic pancreatitis or cystic fibrosis. It is important for healthcare providers to interpret the results in conjunction with clinical findings and other diagnostic tests. No specific post-procedure care is required for the patient following the stool collection, but they should be informed about the significance of the test results and any necessary follow-up actions.