ICD-10 Code I82.1 – Thrombophlebitis migrans (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.1 – Thrombophlebitis migrans
What it is
Thrombophlebitis migrans is a form of recurring superficial vein inflammation with clot formation that appears in different sites over time. Use this code when the record documents migrating or recurrent superficial thrombophlebitis.
Clinical signs
Typical findings include tender, cordlike superficial veins, localized redness, and swelling that may shift from one vein to another. Clinical features vary; refer to documentation.
When to use this code
Use I82.1 when the provider specifically documents thrombophlebitis migrans or migrating superficial thrombophlebitis. It may also fit notes describing recurrent superficial clots in different locations, if the diagnosis is clear. Check documentation for whether the process is superficial or deep.
Do not use for
Do not use this code for deep vein thrombosis, phlebitis without thrombosis, or a single localized superficial clot without migration. If the chart does not support migratory disease, check documentation.
Coding tip
Code only when the migrating pattern is explicitly documented; otherwise, query the provider for clarification.