ICD-10 Code B44.2 – Tonsillar aspergillosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B44.2 – Tonsillar aspergillosis
What it is
B44.2 identifies aspergillosis involving the tonsil, a fungal infection caused by Aspergillus species. Use this code when documentation specifically states tonsillar involvement.
Clinical signs
Clinical features vary; refer to documentation. Reported findings may include tonsillar inflammation, visible fungal debris, sore throat, or localized oral discomfort, but the diagnosis should be confirmed by the provider.
When to use this code
Use B44.2 when the record clearly documents tonsillar aspergillosis or aspergillus infection of the tonsil. You may also use it when the provider links biopsy, culture, or specialist assessment to the tonsillar site.
Do not infer this code from nonspecific fungal throat symptoms alone. If the site is uncertain or documentation only says aspergillosis without location, check the record before coding.
Do not use for
Do not use B44.2 for oral thrush, nonspecific pharyngitis, or aspergillosis at another anatomic site. If the note does not specify the tonsil, check documentation.
Coding tip
Code the documented site exactly; site matters for aspergillosis and should match the provider’s wording.