ICD-10 Code L03.324 – Acute lymphangitis of groin (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L03.324 – Acute lymphangitis of groin
What it is
L03.324 identifies an acute infection and inflammation of the lymphatic channels in the groin. Use it when documentation specifically states acute lymphangitis in this anatomic site.
Clinical signs
Typical findings include localized pain, tenderness, redness, and swelling along lymphatic pathways in the groin. Fever or nearby skin infection may be present; clinical features vary, so refer to documentation.
When to use this code
Use this code when the provider documents acute lymphangitis affecting the groin, including cases described as lymphatic inflammation or infection in that region. It is appropriate when the groin is the documented site and the condition is acute. If the note only describes cellulitis or another skin infection without lymphatic involvement, check documentation.
Do not use for
Do not use L03.324 for chronic lymphatic disease, generalized lymphadenitis, or groin cellulitis without mention of lymphangitis. If the site or diagnosis is unclear, check documentation.
Coding tip
Code the documented anatomic site exactly; if the groin location is not explicit, query the provider before assigning L03.324.