Test ID: CHEP
Chimerism-Recipient Engraftment (Post)
NY State Approved 
Indicates the status of NY State approval and if the test is orderable for NY State clients.
Useful For Suggests clinical disorders or settings where the test may be helpful
Determining the relative amounts of donor and recipient cells in a specimen
An indicator of bone marrow transplant success
Reflex Tests Lists test(s) that may or may not be performed, at an additional charge, depending on the result and interpretation of the initial test(s)
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| CHMT | Chimerism Analysis | No | No |
Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.
Initial Chimerism Testing
Complete chimerism analysis requires 3 specimens. These specimens should be submitted when collected. An interpretive report will be provided once all specimens are received.
CHRGB/83186 Chimerism-Recipient Germline (Pre)
CHIDB/83182 Chimerism-Donor
CHEP/84427 Chimerism-Recipient Engraftment (Post)
Billing occurs with test codes CHRGB/83186 (for the Pre and Donor specimens) and CHMT/84468 (for the Post specimen). If an additional donor sample is submitted, ADDO/61910 Additional Donor will be performed at an additional charge.
Post Chimerism Testing
When this test is ordered, CHMT/84468 Chimerism-Recipient Engraftment (Post) will be added and charged.
See Chimerism-Recipient Germline Testing Algorithm in Special Instructions.
For Mayo Clinic Arizona and Mayo Clinic Florida ONLY:
Initial Chimerism Testing
Complete chimerism analysis requires 3 specimens. These specimens should be submitted when collected. An interpretive report will be provided once all specimens are received.
CHRGB/83186 Chimerism-Recipient Germline (Pre)
CHIDB/83182 Chimerism-Donor
CHEP/84427 Chimerism-Recipient Engraftment (Post)
Billing occurs with test codes CHRGB/83186 (for the Pre and Donor specimens) and the appropriate test for the Post specimen: CHMT/84468 or PCS1/61911 and/or PCS2/62138. If an additional donor sample is submitted, ADDO/61910 Additional Donor will be performed at an additional charge.
Post Chimerism Testing
When this test is ordered, CHMT/84468 Chimerism-Recipient Engraftment (Post) will be added and charge.
See Chimerism-Recipient Germline Testing Algorithm in Special Instructions.
Special Instructions and Forms Describes specimen collection and preparation information, test algorithms, and other information pertinent to test. Also includes pertinent information and consent forms to be used when requesting a particular test
Method Name A short description of the method used to perform the test
Polymerase Chain Reaction (PCR) Amplification/Capillary Electrophoresis
(PCR is utilized pursuant to a license agreement with Roche Molecular Systems Inc.)
Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name
Aliases Lists additional common names for a test, as an aid in searching
Bone Marrow Post-Trans Eval
Bone Marrow Transplantation
Chimerism Evaluation
Transplant Analysis
Transplant Evaluation
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