US · guidance
CMS SOM App. C, Tag D5501
§493.1261 Standard: Bacteriology
(a)(1) Each day of use for beta-lactamase methods other than Cefinase.
Interpretive Guidelines §493.1261(a)(1)
Beta-lactamase testing performed by acidometric, iodometric or chromogenic
methodologies other than Cefinase must have positive and negative reactivity checked
each day of use.
For Cefinase, use D5471.
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
93143435f7d4f4c042d36d010c7b4442526b7055d9291e14bec7e20a2dbb81be
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