B44Header code — not billable

Aspergillosis

Chapter
1. Certain infectious and parasitic diseases
Category
B44
Effective date
October 1, 2026

Related codes in category B44

B44.0Invasive pulmonary aspergillosisYesB44.1Other pulmonary aspergillosisYesB44.2Tonsillar aspergillosisYesB44.7Disseminated aspergillosisYesB44.8Other forms of aspergillosisB44.81Allergic bronchopulmonary aspergillosisYesB44.89Other forms of aspergillosisYesB44.9Aspergillosis, unspecifiedYes

Frequently asked questions

What is ICD-10 code B44?

B44 is an ICD-10-CM diagnosis code for Aspergillosis.

Is B44 a billable code?

No. B44 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is B44 in?

B44 falls under Chapter 1: Certain infectious and parasitic diseases.

When did B44 become effective?

B44 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to B44?

B44 belongs to category B44, which includes 8 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.