B45.9 – Cryptococcosis, unspecified
ICD-10-CM 2027 diagnosis code · Mycoses
ICD-10-CM code
B45.9
- Code
B45.9(claims format:B459)- Description
- Cryptococcosis, unspecified
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- B35-B49 Mycoses
- Parent codes
- B45
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block B35-B49
Index terms for B45.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in B45
Frequently asked questions
What is ICD-10 code B45.9?
B45.9 is the ICD-10-CM code for cryptococcosis, unspecified, in the block B35-B49 (Mycoses).
Is B45.9 a billable code?
Yes. B45.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does B45.9 belong to?
It belongs to category B45 – Cryptococcosis.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.