ICD-10 Code A27.0 – Leptospirosis icterohemorrhagica (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A27.0 – Leptospirosis icterohemorrhagica
What it is
A27.0 identifies leptospirosis icterohemorrhagica, a severe form of leptospirosis caused by infection with Leptospira bacteria. It is associated with jaundice and bleeding manifestations.
Clinical signs
Typical findings include fever, headache, myalgia, jaundice, and hemorrhagic features such as bleeding from mucous membranes. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents leptospirosis icterohemorrhagica or Weil disease. It fits confirmed cases with jaundice and hemorrhagic involvement, or when the record clearly identifies this severe leptospiral syndrome. Check documentation if the diagnosis is only suspected.
Do not use for
Do not use A27.0 for nonspecific leptospirosis without icterohemorrhagic features. Also avoid it when the chart documents a different infectious cause or only exposure without confirmed disease.
Coding tip
Code the most specific leptospirosis form documented; if the note says “Weil disease,” A27.0 is usually the correct choice.