B25.9 – Cytomegaloviral disease, unspecified
ICD-10-CM 2027 diagnosis code · Other viral diseases
ICD-10-CM code
B25.9
- Code
B25.9(claims format:B259)- Description
- Cytomegaloviral disease, 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
- B25-B34 Other viral diseases
- Parent codes
- B25
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
B25 – Cytomegaloviral disease
Index terms for B25.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Cytomegalovirus infection
- Disease, diseased, inclusion
- Virus, viral, cytomegalovirus
- Disease, diseased, cytomegaloviral
- Disease, diseased, cytomegalic inclusion
- Disease, diseased, inclusion, salivary gland
- Disease, diseased, salivary gland or duct, virus
- Disease, diseased, salivary gland or duct, inclusion
- Infection, infected, infective, cytomegalovirus, cytomegaloviral
Related codes in B25
Frequently asked questions
What is ICD-10 code B25.9?
B25.9 is the ICD-10-CM code for cytomegaloviral disease, unspecified, in the block B25-B34 (Other viral diseases).
Is B25.9 a billable code?
Yes. B25.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does B25.9 belong to?
It belongs to category B25 – Cytomegaloviral disease.
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.