ICD-10 Code L03.222 – Acute lymphangitis of neck (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L03.222 – Acute lymphangitis of neck
What it is
This code identifies an acute infection and inflammation of the lymphatic vessels in the neck. Use it when documentation specifically states lymphangitis limited to the neck.
Clinical signs
Typical findings include tender, red streaking or swelling along lymphatic channels, often with nearby skin infection. Clinical features vary; refer to documentation.
When to use this code
Use L03.222 when the provider documents acute lymphangitis of the neck as the diagnosis. It may also apply when the note clearly links neck lymphatic inflammation to an infectious process. If the site is not specified, check documentation before assigning this code.
Do not use for
Do not use this code for chronic lymphatic disorders, generalized lymphadenitis, or infection documented in another body site. Check documentation if the record only mentions swollen lymph nodes.
Coding tip
Confirm both acuity and anatomic site; “neck” must be documented to support L03.222.