US · guidance
CMS SOM App. C, Tag D3013
§493.1101 Standard: Facilities
(e) Records and, as applicable, slides, blocks, and tissues must be maintained and
stored under conditions that ensure proper preservation.
Interpretive Guidelines §493.1101(e)
The laboratory must arrange a secure area for storage of records and, as applicable, slides
blocks, and tissues that will provide conditions that ensure proper preservation of
specimens and records.
Paraffin blocks must be stored in a cool dry environment. Exposure to excessive heat
may cause blocks to melt.
Probes §493.1101(e)
For Cytology and Histology, how does the laboratory ensure that the slides have
completely dried prior to being stored?
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
8f3685777cd9f7665bef86bdf1ca30f3a335a00a1d3b3ccb19687b95533cba9b
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