XN4L3

ICD-11 MMS 2026-01

Orthopoxvirus monkeypox Clade I

Description

Based on the virus genome sequence there are two clades/variants of the Orthopoxvirus monkeypox recognised; Clade I and Clade II. Monkeypox virus has been renamed to Orthopoxvirus monkeypox by the ICTV in 2024.

Index terms

  • Orthopoxvirus monkeypox Clade I
  • Clade I of Orthopoxvirus monkeypox
  • Clade I of the Monkeypox virus (deprecated)
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  • Monkeypox virus clade I (deprecated)
  • Mpox virus Clade I

Child codes

  • XN8ZK – Orthopoxvirus monkeypox Clade Ib
  • XN9XX – Monkeypox virus Clade Ia

Sibling codes

  • XN1BH – Orthopoxvirus monkeypox Clade II

Foundation entity

Orthopoxvirus monkeypox Clade I – http://id.who.int/icd/entity/1879164227

Part of: XN2GM: Orthopoxvirus monkeypox › XN32K: Orthopoxvirus › XN7UC: Poxvirus › XN3BH: Virus › X: Extension Codes