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Test Code 5362 Endomyocardial Biopsy

Reporting Name

Endomyocardial Bx

Useful For

Evaluation of:

-Cardiac allograft rejection



-Idiopathic arrhythmias

-Idiopathic chest pain

-Anthracycline cardiotoxicity

-Secondary heart disease (amyloidosis, sarcoidosis, hemochromatosis, storage diseases, and neoplastic diseases)

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type


Specimen Required

Container/Tube: Sterile container with 10% neutral buffered formalin, Trump's solution, or tissue embedded in paraffin

Specimen Volume: Entire specimen

Collection Instructions: For the evaluation of adriamycin cardiotoxicity, specimens should be fixed in glutaraldehyde or Trump's solution. These specimens will be evaluated by transmission electron microscopy at an additional charge.

Additional Information: The clinical differential diagnoses and the name and phone number of the pathologist or cardiologist involved with the case are required.

Specimen Stability Information

Specimen Type Temperature Time
Tissue Ambient (preferred)

Reference Values

Abnormalities will be compared to reported reference values.

Day(s) and Time(s) Performed

Monday through Friday

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
5362 Endomyocardial Bx In Process


Result ID Test Result Name Result LOINC Value
18463 Accession Number 57723-9
18464 Referring Pathologist/Physician 46608-6
18465 Ref Path/Phys Address 74221-3
18466 Place of Death: 21987-3
18467 Date and Time of Death: 81956-5
18468 Date of Autopsy: 75711-2
18469 Specimen: 31208-2
18470 Material: In Process
18471 Tissue Description: 22634-0
18472 Microscopic Description: 22635-7
18473 Clinical History: 22636-5
18474 Final Diagnosis: 22637-3
18991 Final Diagnosis: 34574-4
18475 Comment: 22638-1
18476 Revision Description: In Process
18477 Signing Pathologist: 19139-5
18478 Special Procedures: 30954-2
18479 SP Signing Pathologist: 19139-5
18480 *Previous Report Follows* No LOINC Needed
18481 Addendum: 35265-8
19191 Addendum Comment: 22638-1
18482 Addendum Pathologist: 19139-5

Method Name

Light Microscopy

Includes hematoxylin-and-eosin, Gomori's iron, and sulfated alcian blue stains.

Electron microscopy, immunoperoxidase, and immunofluorescence are available upon special request. For special studies, call BEFORE the biopsy is performed.