GRAN – “Granulocyte Antibodies, Serum” replaced by GRANS – “Granulocyte Antibody Screen, Serum”

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Inactivated/Replace Test

Effective Date

11/04/2025

Included in Report

WML Test Directory Update | November 2025

Replacement Test

GRANULOCYTE ANTIBODY SCREEN, SERUM

Inactivated Test Details

Mnemonic

GRAN

Ordering Code

3801950

CPT-4 Codes(s)

86021

Replacement Test Details

Mnemonic

GRANS

Ordering Code

3800422

CPT-4 Codes(s)

86021 x 2

Turnaround Time
9 - 17 days
Performed
Tuesday, Thursday
Legacy Code
GRANS
Example Report
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Specimen Information

Patient Preparation

Only pretransfusion reaction specimen is acceptable.

Collect

Red top

Specimen Preparation

Centrifuge, separate and send 1.5 mL serum refrigerated in a screw capped plastic vial.

Minimum Volume

0.3 mL

Transport Temperature

Refrigerated

Rejection Criteria

Serum separator tube (SST)

Stability

Room temperature: 7 days
Refrigerated: 30 days
Frozen: 1 year

Methodology

Indirect Immunofluorescence
more

Reference Range

Negative
more

Performing Laboratory

MAYO
more

New York DOH Approval Status

Yes
more

Interface Map for GRAN

Test Name Ordering Code Result Code Component Name LOINC Code AOE Prompt Units
Granulocyte Antibodies, Serum3801950
3801950Granulocyte Antibodies, Serum35279-9No

The CPT codes provided are for general informational purposes only and are based on an interpretation of AMA guidance. It is the sole responsibility of the billing party to determine CPT codes. Any questions regarding coding should be directed to the paying party.

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