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Test Code HCVG Hepatitis C Virus (HCV) Genotype

Important Note

Genotype determination requires a minimum viral load to be successful.

Minimum HCV viral load > 2,000 IU/ml.

NUH Laboratory strongly recommends ordering viral load (VL) testing (Test code 1033017 HCVP) together with genotype determination.
If viral load is below the acceptable threshold, genotype testing will not be performed, and the test will be cancelled with refund.

If genotype determination is ordered without a concurrent viral load, NUH recommends that a documented viral load within the preceding 14 days is provided with the test order.

In the absence of a concurrent viral load, testing will proceed at the requester’s risk.

If genotype testing fails due to insufficient viral load, the result will be reported as unsuccessful, no reflex viral load testing will be performed.

Additional Codes

Epic Ordering code LAB915
NBS code

LBC13068

Service code 1033018

 

Specimen Requirements

Submit the following    
Preferred    
Light purple top Gold top (SST) Red top

Preferred:
Submit only one of the following:
Specimen Type: Whole Blood/Plasma
Container/Tube: Light purple Top (EDTA)
Specimen Volume: 3.0 mL x 2 tubes

 

Specimen Type: Whole Blood/Serum

Container/Tube: Gold Top (SST)/Red Top (Plain)

Specimen Volume: 5.0 mL

 

Acceptable
Specimen Type: Serum/Plasma
Container/Tube: Sterile container
Specimen Volume: 2.0 mL

Specimen Stability and Condition

Whole Blood (EDTA/plain) 72 hours, ambient/refrigerated
Serum/Plasma 7 days, refrigerated
Unsuitable condition (reject) Whole Blood: Frozen or hemolysis

Methodology

Real-time PCR

Days and Times Performed

TAT 18 days

Reference Interval

An interpretative report will be provided.

Testing Laboratory

National University Hospital
Molecular Microbiology Laboratory (MML), Microbiology division, 67724384

Useful For

Intended for use in selecting individuals with chronic HCV infection for antiviral therapy and in determining the duration of therapy regimes.

Update

Last updated 3/08/2026

LOINC Code Information

32286-7