ICD-10 Code L03.022 – Acute lymphangitis of left finger (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L03.022 – Acute lymphangitis of left finger
What it is
This code identifies an acute infection and inflammation of the lymphatic vessels in the left finger. Use it when documentation specifically states lymphangitis affecting that digit.
Clinical signs
Typical findings include localized redness, warmth, swelling, and tender streaking along the finger or toward the hand. Clinical features vary; refer to documentation.
When to use this code
Use L03.022 when the provider documents acute lymphangitis limited to the left finger, whether from a skin break, bite, or other local source. It may also apply when the note clearly links the infection to that finger and no broader site is specified.
Do not use for
Do not use this code for cellulitis, abscess, or lymphangitis of another site. If the record does not clearly specify the left finger, check documentation.
Coding tip
Confirm laterality and the exact anatomic site in the note before assigning L03.022.