UGT1A – “UGT1A1 Genotyping” replaced by UGTG – “UDP Glucuronosyltransferase 1A1 (UGT1A1) Genotyping”

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Inactivated/Replace Test

Effective Date

01/20/2026

Included in Report

WML Test Directory Update | January 2026

Replacement Test

UDP GLUCURONOSYLTRANSFERASE 1A1 (UGT1A1) GENOTYPING

Inactivated Test Details

Mnemonic

UGT1A

Ordering Code

3600407

CPT-4 Codes(s)

81350

Replacement Test Details

Mnemonic

UGTG

Ordering Code

3600551

CPT-4 Codes(s)

81350

Turnaround Time
4 - 9 days
Performed
Varies
Legacy Code
UGTG
Example Report
Download

Specimen Information

Collect

Lavender EDTA

Specimen Preparation

Send 3.0 mL whole blood.

Alternate Specimen

Yellow ACD A or B; pink (K2EDTA)

Minimum Volume

1.0 mL

Transport Temperature

Refrigerated

Rejection Criteria

Frozen specimens

Stability

Room temperature: 7 days
Refrigerated: 1 month
Frozen: Unacceptable

Methodology

Polymerase Chain Reaction, Fragment Analysis
more

Reference Range

See report
more

Performing Laboratory

ARUP
more

New York DOH Approval Status

Yes
more

Interface Map for UGTG

Test Name Ordering Code Result Code Component Name LOINC Code AOE Prompt Units
UDP Glucuronosyltransferase 1A1 (UGT1A1) Genotyping3600551
3600552UGT1A1 Genotyping Specimen66746-9No
3600409UGT1A1 Genotyping Allele 151951-2No
3600411UGT1A1 Genotyping Allele 251952-0No
3600412UGT1A1 Genotyping Interpretation34509-0No
3600413 EER UGT1A1 11526-1No

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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