HFE (hemochromatosis) (eg, hereditary hemochromatosis) gene analysis, common variants (eg, C282Y, H63D)
CPT4 code
Name of the Procedure:
HFE (Hemochromatosis) Gene Analysis, Common Variants (C282Y, H63D)
Summary
HFE gene analysis is a genetic test used to identify mutations in the HFE gene, such as C282Y and H63D, which are commonly associated with hereditary hemochromatosis—a condition causing excess iron accumulation in the body.
Purpose
This analysis seeks to diagnose or confirm hereditary hemochromatosis, a genetic disorder leading to excessive iron absorption and storage. Identifying these mutations can help manage and prevent complications such as liver disease, heart problems, and diabetes.
Indications
- Symptoms: Fatigue, joint pain, abdominal pain, and bronze or gray skin color.
- Family history of hereditary hemochromatosis.
- Elevated serum ferritin or transferrin saturation levels.
Preparation
- No special preparation, fasting, or medication adjustments are required.
- A simple blood draw will be performed, often with other routine laboratory work.
Procedure Description
- A healthcare provider collects a blood sample, usually from a vein in the arm.
- The blood sample is sent to a laboratory for genetic testing.
- The laboratory analyzes the sample for common HFE gene mutations (C282Y, H63D).
- Tools: Standard phlebotomy supplies.
- No anesthesia or sedation is required.
Duration
The blood draw takes only a few minutes, but results typically take several days to a few weeks.
Setting
Performed in various settings such as hospitals, outpatient clinics, or specialized genetic testing laboratories.
Personnel
- Phlebotomist or nurse for blood draw.
- Laboratory technician/geneticist for sample analysis.
- Genetic counselor or physician for result interpretation and follow-up.
Risks and Complications
- Minimal risk from the blood draw: slight bruising, discomfort, or rare infection at the puncture site.
Benefits
- Early and accurate detection of hereditary hemochromatosis.
- Timely intervention can prevent severe complications.
- Inform family members about potential genetic risks.
Recovery
- No recovery time needed.
- Patients can resume normal activities immediately after the blood draw.
Alternatives
- Clinical evaluation based on signs and symptoms.
- Serum ferritin and transferrin saturation tests to suggest iron overload.
- Liver biopsy if liver damage is suspected.
Patient Experience
- Mild discomfort or a pinching sensation at the site of the blood draw.
- Most patients tolerate the procedure well with minimal discomfort.
- Results discussion with a healthcare provider to understand and plan further steps.