B33.3 is the ICD-10 code for Retrovirus infections, not elsewhere classified. It is a four-character subcategory of B33 (Other viral diseases, not elsewhere classified), the most specific level in the WHO edition. It belongs to the block B25–B34 (Other viral diseases) in Chapter I, Certain infectious and parasitic diseases.
- Code type
- Subcategory (4 characters)
- Chapter
- I · A00–B99
- Classification
- WHO ICD-10, 2019 version
What B33.3 includes
Conditions and terms that are coded here.
- Retrovirus infection NOS
B33.3 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
B33.3Retrovirusinfektion som ej klassificeras på annan plats
B33.3Retrovirusinfeksjon ikke klassifisert annet sted
DB333Retrovirus-infektion IKA
B33.3Muualla luokittamattomat retrovirusinfektiot
B33.3Infektion durch Retroviren, anderenorts nicht klassifiziert
B33.3Infections à rétrovirus, non classées ailleurs
B33.3retrovirusinfecties, niet elders geclassificeerd
B33.3Retrovirus infections, not elsewhere classified
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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