I80.9

What This Code Means

This code describes inflammation of a vein (phlebitis) or inflammation of a vein with a blood clot (thrombophlebitis) when the specific location of the affected vein is not documented or specified. It's a general diagnosis used when the provider hasn't identified which vein is involved.

Coding Tips

• •Always attempt to obtain clarification from the provider about the specific site of phlebitis/thrombophlebitis (such as upper extremity, lower extremity, or specific vein name) before using this unspecified code, as more specific codes provide better clinical detail
• •Review imaging reports, ultrasound findings, or clinical documentation carefully, as the site may be documented elsewhere in the medical record even if not explicitly stated in the diagnosis