US · guidance
CMS SOM App. C, Tag D5449
§493.1256 Standard: Control procedures
(d)(3)(ii) Each qualitative procedure, include a negative and positive control
material;
Interpretive Guidelines §493.1256(d)(3)(ii)
Urinalysis
Photomicrographs or charts of all possible urine sediment components will meet the
control requirement for manual microscopic urinalysis examinations.
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
a0f21e67c74293a45995786374acd54b30c5e5aea474643e760554749107a1cd
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