ICD-10 Code L03.125 – Acute lymphangitis of right lower limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L03.125 – Acute lymphangitis of right lower limb
What it is
L03.125 identifies acute inflammation of the lymphatic vessels in the right lower limb. Use it when documentation specifies lymphangitis affecting the right leg.
Clinical signs
Typical findings include a red, tender streak tracking along the limb, with localized swelling or warmth. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents acute lymphangitis limited to the right lower limb. It is appropriate when the note clearly links the infection or inflammation to the right leg and does not describe a different site.
If the record only says “lymphangitis” without laterality, check documentation before assigning a more specific code. Code the condition documented, not a presumed location.
Do not use for
Do not use this code for cellulitis, abscess, or nonspecific limb redness unless lymphangitis is explicitly documented. Check documentation if the laterality or diagnosis is unclear.
Coding tip
Confirm both acuity and right-sided location in the provider note before coding L03.125.