US · guidance
CMS SOM App. C, Tag D5311
§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:
(a)(1) Patient preparation.
Probes §493.1242(a)(1)
How does the laboratory ensure that all staff, including phlebotomists, gives appropriate
instructions for patient preparation when needed?
Does the laboratory provide instructions directly to patients or to the client when proper
patient preparation is required for optimal specimen collection? For example:
• Proper preservation (temperature) and transportation time of semen specimens;
• Fasting instructions for lipid profile testing;
• Dietary restrictions prior to occult blood testing;
• Twenty-four hour urine collection for specific tests; and
• Fasting and two hour post-prandial glucose collections.
If a patient has special communication needs (hearing impaired, not fluent in English
etc.), are resources available to the client or to the patient, as appropriate, to ensure that
instructions for specimen collection, preservation, and transportation to the laboratory,
are properly understood?
Has the laboratory provided to its staff and/or individuals external to the laboratory who
collect specimens, written procedures to ensure that patient preparation requirements
have been followed?
(a)(2) Specimen collection.
Interpretive Guidelines §493.1242(a)(2)
Verify that procedures are available to the appropriate staff responsible for collecting the
correct specimen, that personnel are using the appropriate collection technique (order and
site of draw) and proper containers (e.g., acceptable anti-coagulant, sterile containers for
culture specimens, dacron swabs vs. cotton swabs).
(a)(3) Specimen labeling, including patient name or unique patient identifier and,
when appropriate, specimen source.
Interpretive Guidelines §493.1242(a)(3)
If the laboratory receives two specimens simultaneously with the same first and last name
or birth date, the laboratory must have a system in place to process these specimens using
distinct identifying indicators in order to distinguish between the specimens. This also
pertains to personnel collecting and labeling specimens. This may include a system that
involves labeling the specimen container and request slip (or the patient’s medical record
or chart) with a unique patient identification number, but does not preclude the use of
other mechanisms to assist in patient identification and tracking of specimens throughout
the collection, accessioning, testing, and reporting processes.
(a)(4) Specimen storage and preservation.
Interpretive Guidelines §493.1242(a)(4)
Review manufacturer’s instructions for performance of each test method to ensure that
specimens are properly stored (e.g., maintained at room temperature, kept refrigerated
after separation, separated and frozen).
Probes §493.1242(a)(4)
What instructions are provided for specimen preservation and transportation, when
applicable? For example:
• Sputum for Cytology;
• Specimens for parathyroid hormone;
• Specimens for blood gas analysis;
• Specimens for urine culture and colony count; and
• Specimens for 24-hour urine collections requiring preservatives.
(a)(5) Conditions for specimen transportation.
Probes §493.1242(a)(5)
Does the laboratory follow the manufacturer’s or the referral laboratory’s instructions, as
appropriate, for transport of specimens?
(a)(6) Specimen processing.
Interpretive Guidelines §493.1242(a)(6)
Specimen processing may include receiving the specimen, accessioning the specimen,
preparing the specimen for in-house analysis, preparation to send to a reference
laboratory, preparing slides, and inoculating primary culture media, etc. Specimen
processing also includes: Parasitology: the fixation and concentration of specimens;
Virology: the pretreatment of specimens with antibiotics, the manipulation of cell culture
tubes and inoculation of the cell cultures prior to incubation; Mycobacteriology:
performing digestion-decontamination and concentration procedures on clinical
specimens; and Histopathology: specimen accession with or without fixation, embedding
the paraffin block, cutting the paraffin block, mounting the embedded cut tissue to a
slide, preparing the slide for staining, staining and cover slipping the slide, or any other
slide preparation procedures that do not involve examination resulting in diagnostic
interpretation.
NOTE: for histopathology specimens, specimen processing does not constitute a CLIA
test. Only gross examinations (including weighing, measuring, describing color, specific
orientation for diagnostic interpretation, and other characteristics of the tissue, or
performing other mechanical procedures including dissection, inking, and marking)
require a CLIA certificate. Microscopic examinations of tissue with diagnostic
interpretation and reporting is a Histopathology test and requires CLIA certification.
Probes §493.1242(a)(6)
What policies or systems does the laboratory have in place to differentiate specimens that
have similar names or identification information?
How does the laboratory recognize and process timed patient specimens (e.g., peaks and
troughs)?
(a)(7) Specimen acceptability and rejection.
Interpretive Guidelines §493.1242(a)(7)
Criteria for specimen acceptability and rejection must include the disposition of the
rejected specimen(s). Use D5805. The laboratory should promptly notify the authorized
person when a specimen meets its rejection criteria and is unsuitable for testing.
(a)(8) Specimen referral.
Interpretive Guidelines §493.1242(a)(8)
Ensure that the laboratory has a current service manual available for each reference
laboratory that it uses that contains the reference laboratory’s specimen requirements for
the test to be performed.
Probes §493.1242(a)(8)
Are laboratory personnel familiar with procedures to prepare and/or submit specimens to
the appropriate reference laboratory?
How does the laboratory ensure the security and preservation of specimens submitted to
their reference laboratory (e.g., if the office closes before the arrival of the reference
laboratory’s courier)? How does the laboratory ensure a timely pick-up of specimens to
be performed at the referral laboratory?
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
a90643423468b547a1650d026c5cbf0fd2fbed57e2fce030b528de3edfad305f
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