NHSN doesn’t specify collection methods; Any unformed stool specimen testing positive for C. difficile toxin A and/or toxin B is eligible for use in meeting the definition of CDI laboratory assay. Reporting should be done irrespective of method of collection (for example, stools collected from ostomies), and/or there being a change from the normal consistency or amount of the stool.  These reporting instructions align with the intent of LabID Event Reporting to decrease the burden for gathering information beyond the specimen collection date and admission date and will remove subjectivity and simplify interpretation of the GI-CDI infection criteria.  Specimens labeled something other than ‘stool’ are not eligible for use.