US · guidance
CMS SOM App. C, Tag D2085
§493.837 Standard: General immunology
(g) Failure to achieve an overall testing event score of satisfactory performance for
two consecutive testing events or two out of three consecutive testing events is
unsuccessful performance.
§493.839 Condition: Chemistry.
(Rev. 233; Issued: 09-12-25; Effective: 09-12-25; Implementation: 09-12-25)
The specialty of chemistry includes for the purposes of proficiency testing the
subspecialties of routine chemistry, endocrinology, and toxicology.
Refer to Subpart I for analytes or tests for which laboratory PT performance is to be
evaluated, which include serum, plasma or blood samples.
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
8fcf18c3a1ee0b8d390624bff41b8f986a533653985a97bfc8e47c6e06a6c8f8
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