Monogenic Diabetes (MODY) Two Gene Evaluation (GCK,HNF1A)

Test Code
8802

Test Details


Test code:8802
Type of disorder:Diabetes
Disease(s) tested for:Diabetes
Genes Included: GCK, HNF1A,
Tests included:GCK (MODY2) DNA Sequencing and Deletion Test
TCF1 (MODY3) DNA Sequencing and Deletion Test
Informed Consent Required:This test requires physician attestation that patient consent has been received

Technical Information


Clinical Significance:Permits the sequence analysis of the two genes GCK and HNF1A that are frequently mutated in MODY
Methodology: Sanger Sequencing, Multiplex Ligation-dependent Probe Amplification (MLPA)
Reference Range:Accompanies Report

CPT Coding


The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

CPT:81405(1), 81406(1), 81479(1)

Specimen Requirements


Please label each specimen tube with two forms of patient identification. These forms of identification must also appear on the requisition form.

Specimen Type:Whole blood
Specimen Stability: Room temperature: 10 days, Refrigerated: 10 days, Frozen: Unacceptable,
Specimen Requirements: 8 mL (6 mL minimum) whole blood collected in two (lavender-top) EDTA tubes. Pediatric (0-3 years): 2 mL (1 mL minimum)

Shipping Considerations


Transport Temperature:Room temperature
Set-up/Analytic Time:14-28 days

Additional Resources

Letters of Medical Necessity

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