# Isocyanate HDI

> This test measures specific antibodies in your blood to see if your immune system reacts to Hexamethylene Diisocyanate (HDI), a chemical used in industrial paints and foams. It helps show whether breathing problems or skin irritation may be caused by an allergic reaction to this substance, which is often related to workplace exposure.

- Labcorp code: 602665
- Category: [Allergies & Sensitivities](https://picardo.health/labs/tests/allergies-sensitivities.md)
- Sample: blood
- Labcorp turnaround: 3–5 days
- Collection: free at a Labcorp location, or $75.00 at home.
- Without a doctor: yes. People order it themselves, with no doctor's visit or referral.
- Price: shown on the review page its order link opens. Opening it orders nothing.
- Order link: https://app.picardo.health/labs/order?tests=602665&ref=assistant

## About ordering

People order for themselves, with no doctor's visit or referral, and results arrive in their Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.