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Test Code 315 Occult Blood

Important Note

A special diet, to start 48 hours prior to the testing, may be recommended by the physician.

Additional Codes


Specimen Requirement

Stool specimen is required.

Additional Specimen Collection Information

Collect the specimen as prescribed on the Hemoccult folder. Close the folder tightly to prevent the specimen from drying out. Check the folder to make sure it is within the expiration date listed. Transport the specimen to the laboratory as soon as possible after collection. Hemoccult slides may be prepared and stored up to 14 days at room temperature before developing.

Useful For

Screening for gastrointestinal bleeding


Testing is performed Monday through Friday.

Typically completed within 4 hours after the specimen arrives at the testing site.

CPT Code Information

82272 Chemistry: Occult Blood, by peroxidase activity (eg, guaiac) qualitative, feces, 1-3 simultaneous determinations, performed for other than colorectal neoplasm screening.

LOINC Code Information

27396-1  Hemoglobin.Gastrointestinal [Mass/Mass] In Stool

Test Method

Simplified, Standardized Variation Of Guaiac Test, Hemoccult; Beckman

Reference Values