B45Header code — not billable

Cryptococcosis

Chapter
1. Certain infectious and parasitic diseases
Category
B45
Effective date
October 1, 2026

Related codes in category B45

B45.0Pulmonary cryptococcosisYesB45.1Cerebral cryptococcosisYesB45.2Cutaneous cryptococcosisYesB45.3Osseous cryptococcosisYesB45.7Disseminated cryptococcosisYesB45.8Other forms of cryptococcosisYesB45.9Cryptococcosis, unspecifiedYes

Frequently asked questions

What is ICD-10 code B45?

B45 is an ICD-10-CM diagnosis code for Cryptococcosis.

Is B45 a billable code?

No. B45 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 B45 in?

B45 falls under Chapter 1: Certain infectious and parasitic diseases.

When did B45 become effective?

B45 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to B45?

B45 belongs to category B45, which includes 7 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.