XT3Z

ICD-11 MMS 2026-01

Rapid onset

Description

Rapid or sudden onset of a condition/illness that requires more immediate and/or aggressive treatment

Index terms

  • Rapid onset
  • sudden onset

Sibling codes

  • XT2Q – Early onset
  • XT3R – Late onset
  • XT42 – Gradual onset
  • XT46 – Immediate onset
  • XT64 – Delayed onset

Foundation entity

Rapid onset – http://id.who.int/icd/entity/1385443355

Part of: X: Extension Codes