ICD-10 Code L03.32 – Acute lymphangitis of trunk (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L03.32 – Acute lymphangitis of trunk
What it is
This code identifies an acute infection and inflammation of the lymphatic vessels in the trunk. Use it when documentation specifically states lymphangitis affecting the chest, back, or abdominal wall.
Clinical signs
Typical findings include red, tender streaks tracking along lymphatic channels, local warmth, and swelling. Fever or regional lymph node tenderness may occur; clinical features vary, so refer to documentation.
When to use this code
Use L03.32 when the provider documents acute lymphangitis of the trunk or clearly describes lymphatic inflammation in the trunk region. It fits cases where the infection is localized to the trunk rather than an extremity. If the record only says cellulitis or abscess, check documentation before assigning this code.
Do not use for
Do not use this code for lymphangitis of the upper or lower limb, or for unspecified site infections. Avoid it when the diagnosis is cellulitis, abscess, or another skin infection without documented lymphatic involvement.
Coding tip
Code the site exactly as documented; trunk-specific wording supports L03.32.