US · guidance
CMS SOM App. C, Tag D5807
§493.1291 Standard: Test report
(d) Pertinent “reference intervals” or “normal” values, as determined by the
laboratory performing the tests, must be available to the authorized person who
ordered the tests and, if applicable, the individual responsible for using the test
results.
Interpretive Guidelines §493.1291(d)
The laboratory must ensure the “reference intervals” or “normal” values it provides to its
clients are accurate, include appropriate units of measurement, and reflect the method
performed and the patient population (if applicable).
Probes 493.1291(d)
Does the laboratory use the race-free equation for the estimated glomerular filtration rate
(eGFR)?
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
c960ae1edfead1d9cc8810eae612d7aa33b40a5ec896c0fbfe863fec6769c9fd
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