ICD-10 Code A21.7 – Generalized tularemia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A21.7 – Generalized tularemia
What it is
Generalized tularemia is a systemic form of infection caused by Francisella tularensis. It means the illness has spread beyond a single local site and is affecting the body more broadly.
Clinical signs
Clinical features vary; refer to documentation. Generalized disease may include fever, malaise, and other systemic findings, sometimes with involvement of multiple organs or widespread symptoms.
When to use this code
Use A21.7 when the provider documents generalized tularemia or a disseminated/systemic form of tularemia. Apply it when the record clearly indicates infection beyond localized skin, eye, or lymph node disease.
If the note only says tularemia without specifying the form, check documentation before coding. Do not infer generalized involvement from nonspecific symptoms alone.
Do not use for
Do not use this code for localized tularemia presentations, such as ulceroglandular, oculoglandular, or pneumonic forms, unless generalized disease is documented. Check documentation if the type is unclear.
Coding tip
Code the documented clinical form exactly as stated; if generalized disease is not explicit, query the provider.