Monogenic Diabetes (MODY) 2, Gene Evaluation

Test Code

38240

CPT Codes
81405, 81406, 81479 CPT coding may differ dependent on payer rules which may impact prior authorization testing. Please direct any questions regarding CPT coding to the payer being billed. Restricted Client Code

Preferred Specimen

8 mL whole blood collected in two EDTA (lavender-top) tubes

Minimum Volume

6 mL

Instructions

Higher blood volumes ensure adequate DNA quantity, which varies with WBC, specimen condition, and need for confirmatory testing. Patients 0-3 years have higher WBC, yielding more DNA per mL of blood.

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 10 days
Refrigerated: 10 days
Frozen: Unacceptable

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Received frozen

Methodology
Sanger Sequencing • Multiplex Ligation-dependent Probe Amplification

FDA Status
This test was developed and its analytical performance characteristics have been determined by Athena Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Report available: 14-28 days

Clinical Significance

Permits the sequence analysis of the two genes GCK and HNF1A that are frequently mutated in MODY.

The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.