ICD-10 Code I82.55 – Chronic embolism and thrombosis of peroneal vein (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.55 – Chronic embolism and thrombosis of peroneal vein
What it is
I82.55 identifies a chronic clot or embolic blockage in the peroneal vein, a deep vein in the lower leg. Use it when the record clearly documents an ongoing or old deep venous thrombosis in that vein.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include leg swelling, pain, tenderness, or a history of prior venous thrombosis confirmed by imaging or specialist assessment.
When to use this code
Use this code when the provider documents chronic embolism or thrombosis specifically involving the peroneal vein. It fits follow-up visits, persistent clot findings, or imaging reports that state chronic thrombosis in that location. If the vein is not specified, check documentation.
Do not use for
Do not use this code for acute peroneal vein thrombosis, superficial thrombophlebitis, or thrombosis in another vein location. If the chart only says “DVT” without chronicity or site, check documentation.
Coding tip
Code chronicity and vein site exactly as documented; if either is unclear, query the provider.