HCPCS Code J1642: Injection, Heparin Sodium, (Heparin Lock Flush), Per 10 Units

No. It's for cleaning IV lines and preventing blood clots from forming in it. This will ensure the IV line is functional.

Nurses and medical technicians who are trained in using heparin to clean IV lines.

Not always. Many payers, including Medicare, bundle heparin flushes into the procedure cost. Again, please check with your insurer/payer to be sure about the coverage for this.