Hemoglobin A1c with eAG with Reflex to 1,5-Anhydroglucitol (1,5-AG)

Test Code

10379

Alias/See Also

Hemoglobin A1C with GlycoMark Reflex
503205 (LabCorp)

CPT Codes
83036

Includes

If Hemoglobin A1c is ≥6.5% and ≤8.0%, then 1,5-Anhydroglucitol (1,5-AG), Intermediate Glycemic Control will be performed at an additional charge (CPT code(s): 84378).

Preferred Specimen

1 full tube whole blood collected in EDTA (lavender-top) tube, and
1 mL serum, received spun

Minimum Volume

0.5 mL

Other Acceptable Specimens

1 full tube whole blood collected in EDTA (lavender-top) tube, and
1 mL plasma collected in EDTA (lavender-top) tube

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days

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

Sodium fluoride/oxalate (gray-top) tube • Heparinized plasma • Unspun serum separator tube

Methodology
Enzymatic

Setup Schedule

Set up: Daily; Report available: 1 day

Reference Range

<5.7 % of total Hgb

Clinical Significance

To assist with control of blood glucose levels, the American Diabetes Association (ADA) has recommended glycated hemoglobin testing (HbA1c) twice a year for patients with stable glycemia, and quarterly for patients with poor glucose control. Interpretative ranges are based on ADA guidelines.

Performing Laboratory

Quest Diagnostics Nichols Institute

14225 Newbrook Drive

Chantilly, VA 20153

Last Updated: November 21, 2023

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.