ICD-10 Code L03.89 – Acute lymphangitis of other sites (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L03.89 – Acute lymphangitis of other sites
What it is
L03.89 identifies acute inflammation of lymphatic vessels in sites other than the limbs or face. Use it when documentation specifically states acute lymphangitis at another anatomic location.
Clinical signs
Typical findings include localized redness, tenderness, swelling, and linear 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 an “other site,” such as the trunk or another non-specified location outside the code’s more specific categories. Confirm the anatomic site in the note before assigning it.
Do not use for
Do not use it for chronic lymphangitis, cellulitis without lymphatic involvement, or lymphangitis of a different specified site. Check documentation if the site is unclear.
Coding tip
Code the most specific site documented; if the record only says “lymphangitis,” you may need clarification.