ICD-10 Code I82.C19 – Acute embolism and thrombosis of unspecified internal jugular vein (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.C19 – Acute embolism and thrombosis of unspecified internal jugular vein
What it is
This code identifies an acute blood clot or embolus in the internal jugular vein when the side is not specified. Use it for a newly diagnosed venous obstruction in this neck vein.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include neck pain, swelling, tenderness, or a palpable cord, with imaging used to confirm thrombosis.
When to use this code
Use I82.C19 when the provider documents acute embolism or thrombosis of the internal jugular vein and does not state right or left. It also fits confirmed acute clotting on imaging when laterality is absent from the record. If the note identifies a different jugular segment or a chronic process, check documentation.
Do not use for
Do not use this code for chronic jugular vein thrombosis, superficial thrombophlebitis, or thrombosis in a different vein. If the record specifies the right or left internal jugular vein, select the laterality-specific code instead.
Coding tip
Verify whether the provider documented acute, unspecified laterality, and internal jugular vein before assigning I82.C19.