US · guidance
CMS SOM App. C, Tag D2098
§493.843 Standard: Endocrinology
Refer to Subpart I for analytes or tests for which laboratory PT performance is to be
evaluated, which include serum, plasma, blood, or urine.
NOTE: If the laboratory performs the same analyte on different specimen types, it may
choose which specimen type to enroll in PT. The laboratory need not enroll for each
specimen type of the same analyte. The laboratory is required to perform twice a year
verification of accuracy for the test not enrolled for PT. (See §493.1236/D5217)
(a) Failure to attain a score of at least 80 percent of acceptable responses for each
analyte in each testing event is unsatisfactory analyte performance for the testing
event.
History
Rev. 233; Issued: 09-12-25; Effective: 09-12-25; Implementation: 09-12-25
Provenance
- Source
- cms.gov
- Retrieved
- 2026-07-22
- Edition
- som-2026-07-22
- Content hash
8394d1fd8f196e7e5d2d90bf2944b98d3bf3c45cafc0f96ad6fd7a38cb7a194a
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