B45

Non-Billable

ChapterA00–B99

Rankcategory

Official Description

Cryptococcosis

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Non-billable category (requires more specific sub-code).
•Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).

CH1 Parent Instructions

Includes

diseases generally recognized as communicable or transmissible

Excludes1(Not coded here)

certain localized infections - see body system-related chapters

Excludes2(Not included here)

carrier or suspected carrier of infectious disease (Z22.-)
infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
infectious and parasitic diseases specific to the perinatal period (P35-P39)
influenza and other acute respiratory infections (J00-J22)

Use Additional Code

code to identify resistance to antimicrobial drugs (Z16.-)

B35-B49 Parent Instructions

Excludes2(Not included here)

hypersensitivity pneumonitis due to organic dust (J67.-)
mycosis fungoides (C84.0-)

Clinical Hierarchy

CH1Certain infectious and parasitic diseases (A00-B99)

B35-B49Mycoses (B35-B49)

B45Cryptococcosis

B45.0Pulmonary cryptococcosis

B45.1Cerebral cryptococcosis

B45.2Cutaneous cryptococcosis

B45.3Osseous cryptococcosis

B45.7Disseminated cryptococcosis

B45.8Other forms of cryptococcosis

B45.9Cryptococcosis, unspecified

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to B45:

blockB35-B49

Mycoses (B35-B49)

View context instructions

chapterCH1

Certain infectious and parasitic diseases (A00-B99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to B45. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

17 raw paths

Cryptococcosis, cryptococcus (infection) (neoformans)12 unique routes

Direct index entry→B45

bone→B45

cerebral→B45

meningocerebralis→B45

osseous→B45

pulmonary→B45