Phlebitis and thrombophlebitis of other sites

This code describes inflammation of a vein (phlebitis) or inflammation of a vein with associated clot formation (thrombophlebitis) occurring in anatomical locations other than the lower extremities, superficial vessels of the upper extremities, or intracranial venous sinuses. It encompasses venous inflammation and thrombosis in less common or unspecified sites.

Use this code when documentation specifies phlebitis or thrombophlebitis affecting sites such as the neck, trunk, or internal organs, and a more specific code is not available. This code is appropriate when the physician's notes clearly indicate the presence of venous inflammation or thrombosis in an "other specified" or "unspecified" location not covered by more granular codes within the I80 category.

• Always seek more specific codes within the I80 category first if the anatomical site is clearly documented (e.g., lower extremity, superficial upper extremity).
• Ensure the documentation specifies a site that is not covered by I80.0-I80.3 or I80.9.
• Consider sequencing this code after a code for any underlying cause or associated condition, if applicable.