ICD-10 diagnosis code

B25 Cytomegaloviral disease

B25 is the ICD-10 code for Cytomegaloviral disease. It is a three-character category divided into 5 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block B25–B34 (Other viral diseases) in Chapter I, Certain infectious and parasitic diseases.

Code type: Category (3 characters)
Chapter: I · A00–B99
Classification: WHO ICD-10, 2019 version

What B25 excludes

Conditions that look similar but belong under another code.

congenital cytomegalovirus infection P35.1
cytomegaloviral mononucleosis B27.1

Subcodes of B25

B25 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

B25Cytomegalvirussjukdom

DenmarkICD-10-DK

DB25Cytomegalovirale sygdomme

FinlandICD-10-FI

B25Sytomegalovirussairaus

GermanyICD-10-GM

B25Zytomegalie

FranceICD-10-FR

B25Maladie à cytomégalovirus

NetherlandsICD-10-NL

B25cytomegalovirusziekte

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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