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Genetic Labs

Houston, Texas

Genetic Laboratory
Baylor Genetics Laboratories
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Medical Genetics Test Details

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The American Medical Association (AMA) Current Procedural Terminology (CPT) codes and Healthcare Common Procedure Coding System (HCPCS) codes listed, are provided for informational purposes only. The codes reflect our interpretation of CPT/HCPCS coding requirements based upon AMA guidelines published annually. CPT/HCPCS codes are provided only as guidance to assist clients with billing. Baylor Genetics strongly recommends that clients confirm CPT/HCPCS codes with their Medicare Administrative Contractor (MAC) or other payer being billed, as requirements may differ. CPT coding is the sole responsibility of the billing party. Baylor Genetics assumes no responsibility for billing errors due to reliance on the CPT codes listed. Please direct any questions regarding CPT coding to the payer being billed.
Intrahepatic Cholestasis - ABCB4 Related tests available.

MDR3 DEFICIENCY | PFIC3 | Progressive Familial Intrahepatic Cholestasis 3

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Diagnostic Testing Familial Mutation/Variant Analysis Mutation Testing General Population Prenatal Diagnosis Presymptomatic Testing
Deletion/Duplication Analysis ABCB4 Deletion/Duplication Analysis
Test Code: 3318
Sequence & Deletion/Duplication Analysis ABCB4 Comprehensive - Sequence & Deletion/Duplication Analysis
Test Code: 3319
Sequence Analysis ABCB4 Sequence Analysis
Test Code: 3315
ABCB4 Sequence Analysis
Test Code: 3316

This test can only be performed if there is a previously identified familial mutation.
ABCB4 Sequence Analysis
Test Code: 3317

We require that the referring center consult with our laboratory genetic counselors regarding prenatal cases prior to submitting any samples. Please call 1-800-411-4363.


ABCB4 Comprehensive - Sequence & Deletion/Duplication Analysis
Test Information: Confirmation of Clinical Diagnosis
Test Details
Test Code: 3319
Test Includes: Sequence and Deletion/Duplication Analysis of ABCB4 gene

Special Notes: If the mutation to be tested in this individual is one previously identified in an affected family member, please order test (#3315) for point mutations or (#3318) for duplication and deletion analysis. Please see detailed requirements under these test codes.

ABCB4 is included in the Cholestatis Panel (#2105).
Technical Information
Methodology: Sequence analysis is performed in both forward and reverse directions and deletion/duplication analysis performed using a custom designed gene centric microarray.
Gene Name: ABCB4 (GBD1, MDR2, PFIC-3)
Protein Name: Multidrug resistance protein 3 (MDR3)
Test Type: Sequence & Deletion/Duplication Analysis
Sample & Shipping Information
Test Requisition: Molecular Diagnostics
Specimen Type: Blood
Requirements: Draw blood in an EDTA (purple-top) tube(s) and send 3-5 cc (Adults/Children) and 3 cc (Infant<2yrs).
Shipping Conditions: Ship at room temperature in an insulated container by overnight courier. Do not heat or freeze.

Turn Around Time: 28 days
Billing Information
List Price: *For Insurance or Institutional Prices, please call.
CPT Codes: 81479x1


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