ICD-10 Code I82.C23 – Chronic embolism and thrombosis of internal jugular vein, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.C23 – Chronic embolism and thrombosis of internal jugular vein, bilateral
What it is
This code identifies a chronic blood clot or embolus affecting both internal jugular veins. Use it when documentation specifies bilateral internal jugular vein thrombosis or chronic embolic obstruction.
Clinical signs
Clinical features vary; refer to documentation. Commonly, patients may have neck swelling, tenderness, venous distention, or symptoms tied to impaired venous drainage, but imaging confirmation is usually needed.
When to use this code
Use I82.C23 when the provider documents chronic thrombosis or chronic embolism in both internal jugular veins. It fits confirmed bilateral disease on imaging or in the assessment, not a suspected clot.
If the record states only one jugular vein, an acute event, or a different neck vein, choose the more specific documented code. Check documentation when chronicity or laterality is unclear.
Do not use for
Do not use this code for acute jugular vein thrombosis, unilateral disease, or thrombosis in another venous site. If the chart does not support chronic bilateral involvement, check documentation.
Coding tip
Verify both chronicity and bilateral laterality in the provider note or imaging report before assigning I82.C23.