ICD-10 Code L03.891 – Acute lymphangitis of head [any part, except face] (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L03.891 – Acute lymphangitis of head [any part, except face]
What it is
This code identifies an acute infection and inflammation of the lymphatic vessels in the head, excluding the face. It usually reflects bacterial spread from a nearby skin or soft-tissue source.
Clinical signs
Typical findings include localized tenderness, redness, swelling, and sometimes red streaking along lymphatic channels. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents acute lymphangitis affecting any part of the head other than the face. It may fit cases linked to an infected wound, boil, or other localized skin infection. Confirm the anatomic site is clearly documented before assigning the code.
Do not use for
Do not use this code for lymphangitis of the face, generalized lymph node infection, or chronic lymphatic disorders. Check documentation if the record only mentions cellulitis or abscess without lymphatic involvement.
Coding tip
Verify the exact head location and exclude facial involvement before coding L03.891.