ICD-10 Code A27.89 – Other forms of leptospirosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A27.89 – Other forms of leptospirosis
What it is
A27.89 identifies leptospirosis cases that do not fit a more specific ICD-10 subtype. Use it for documented leptospiral infection when the record does not name a different form.
Clinical signs
Clinical features vary; refer to documentation. Leptospirosis may present with acute febrile illness, headache, myalgia, conjunctival suffusion, jaundice, or renal involvement.
When to use this code
Use this code when the clinician documents leptospirosis but does not specify the form, or when the record states another form not captured elsewhere in the category. It is appropriate for confirmed infection and for clearly documented suspected cases only if your setting allows coding of uncertainty. Check documentation.
Do not use for
Do not use A27.89 if the chart identifies a more specific leptospirosis code, such as a different clinical manifestation or carrier state. Do not assign it for nonspecific fever or exposure without documented infection.
Coding tip
Match the code to the exact wording in the note; if the form is named, code that specific leptospirosis category instead.