Updated Test

Effective Date

04/20/2026

Notes

Update to specimen requirements, rejection criteria, stability, and methodology

Specimen Preparation: Send 5 g unpreserved stool in a screw capped plastic container.

Rejection Criteria: Preserved stool

Stability:

Room temperature: 14 days
Refrigerated: 14 days
Frozen: 14 days

Methodology: Qualitative Enzyme Linked Immunosorbent Assay (ELISA)

Test Details

Mnemonic

LACTF

Ordering Code

3688420

CPT-4 Codes(s)

83630