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Test Code PATHC Pathology Consultation

Advisory Information

If requesting only a peripheral blood smear evaluation, order SPSM / Morphology Evaluation (Special Smear).


This test is not intended for use with wet tissue (tissue that still needs to be processed). See Pathology Consultation Ordering Algorithm.

Shipping Instructions

Attach the green "Attention Pathology" address label included in the kit to the outside of the transport container.

Necessary Information

A preliminary pathology report and brief history are required for all Pathology Consultations.

Specimen Required

Specimens needed to provide a complete Hematopathology consultation:

1. Recent peripheral blood smear with CBC report

2. Bone marrow biopsy/clot (block and stained slides)

3. Bone marrow aspirate (stained and unstained slides)

4. All pending and final reports for ancillary testing on above specimens


Supplies: Pathology Packaging Kit (T554)

Specimen Type: Slides

Slides: Submit hematoxylin and eosin (H and E) and all special stains performed on the case. Include unstained slides and/or a formalin-fixed, paraffin-embedded tissue block if it is anticipated that additional stains or ancillary testing may be necessary. Unstained slides for immunohistochemistry should be charged, if possible, as not all immunohistochemical stains can be performed on uncharged slides.

Additional Information:

1. A brief explanatory note or consultative letter is also recommended.

2. This test is not intended for use with wet tissue (tissue that still needs to be processed).

3. If electron microscopy (EM) has been performed, include EM images (either on a CD or as prints).


1. Hematopathology Patient Information (T676) in Special Instructions

2. Pathology/Cytology Information (T707) in Special Instructions

3. If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:

Hematopathology/Cytogenetics Test Request Form (T726) (

Oncology Test Request Form (T729) (

Pathology Test Request Form (T246) (

Benign Hematology Test Request Form (T755) (

General Request Form (T239) (

Useful For

Obtaining a rapid, expert second opinion on specimens referred by the primary pathologist


Obtaining special studies not available locally

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
COSPC Consult, Outside Slide No No
CSPPC Consult, w/Slide Prep No No
CUPPC Consult, w/USS Prof No No
CRHPC Consult, w/Comp Rvw of His No No

Testing Algorithm

This request will be processed as a consultation case. An interpretation, which includes an evaluation of the specimen and determination of a diagnosis, will be provided within a formal pathology report. Second opinion regarding diagnosis will be rendered by staff pathologists, often in consultation with colleagues who have expertise in the appropriate subspecialty areas. Appropriate additional stains and other ancillary testing may be performed in order to render an accurate diagnosis. These additional stains/tests ordered will have the results included within the final pathology report and will be charged separately.


Note: Special stains and studies performed on the case should be sent with the case for review. In order to determine an accurate diagnosis, some of these stains or studies may be deemed to warrant being repeated (and charged) at the reviewing Mayo pathologist's discretion. In addition, testing requested by the referring physician (immunostains, molecular studies, etc) may not be performed if deemed unnecessary by the reviewing Mayo pathologist. For all pathology consultations, ancillary testing necessary to determine a diagnosis is ordered at the discretion of the Mayo pathologist.


See Pathology Consultation Ordering Algorithm in Special Instructions.

Reporting Name

Pathology Consult

Specimen Type


Specimen Stability Information

Specimen Type Temperature Time
MMLDRY Ambient

Reject Due To

Note: No specimen should be rejected. If specimen not received at appropriate temperature or in wrong anticoagulant, include note to laboratory. If questions, contact laboratory.

Reference Values

The laboratory will provide a pathology consultation.

Day(s) and Time(s) Performed

Monday through Friday; Varies

Analytic Time

3 days; Note: Cases requiring additional staining and ancillary testing may require additional time.

Performing Laboratory

Mayo Medical Laboratories in Rochester

CPT Code Information

88321-Consultation and report on referred slides prepared elsewhere (if appropriate)

88323-Consultation and report on referred material requiring preparation of slides (if appropriate)

88325-Consultation, comprehensive, with review of records and specimens, with report on referred material (if appropriate)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
PATHC Pathology Consult In Process


Result ID Test Result Name Result LOINC Value
71038 Interpretation 50595-8
71039 Participated in the Interpretation No LOINC Needed
71040 Report electronically signed by 19139-5
71041 Addendum In Process
71042 Material Received 81178-6
71583 Disclaimer 62364-5
71789 Case Number 80398-1