Engraftment Monitoring, Post

CPT: 81267
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Test Details


  • Chimerism Testing
  • Postengraftment Monitoring

Test Includes

Polymorphic genetic markers (loci) to distinguish host versus donor cells


Monitor the acceptance of donor cells by the host (recipient) of a stem cell transplant. Polymorphic loci determined in the preëngraftment testing are used for the evaluation.


This test was developed, and its performance characteristics determined, by LabCorp. It has not been cleared or approved by the US Food and Drug Administration (FDA).


DNA analysis by polymerase chain reaction (PCR) of short tandem repeats (STR)

Specimen Requirements


Whole blood, marrow cells, fractionated cells, or extracted DNA


Adult tube

Minimum Volume

3 mL


Lavender-top (EDTA) tube

Storage Instructions

Maintain whole blood at room temperature.

Causes for Rejection

Hemolysis; clotted specimen

Clinical Information

Special Instructions

To schedule this test, you must telephone HLA customer service at 800-533-1037.


Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
168120 Post Tp Engraft 168125 Donor 1 N/A
168120 Post Tp Engraft 168163 Donor 2 N/A
168120 Post Tp Engraft 168164 Donor 3 N/A
168120 Post Tp Engraft 168165 Donor 4 N/A

For Providers

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