493.1242—Standard: Specimen submission, handling, and referral.
(a)
The laboratory must establish and follow written policies and procedures for each of the following, if applicable:
(3)
Specimen labeling, including patient name or unique patient identifier and, when appropriate, specimen source.
(c)
The laboratory must refer a specimen for testing only to a CLIA-certified laboratory or a laboratory meeting equivalent requirements as determined by CMS.
(d)
If the laboratory accepts a referral specimen, written instructions must be available to the laboratory's clients and must include, as appropriate, the information specified in paragraphs (a)(1) through (a)(7) of this section.