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ICD-10 diagnosis code

U23 Emergency use of U23

U23 is the ICD-10 code for Emergency use of U23. It is a three-character category divided into 1 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block U00–U49 (Provisional assignment of new diseases of uncertain etiology or emergency use) in Chapter XXII, Codes for special purposes.

Code type
Category (3 characters)
Chapter
XXII · U00–U85
Classification
WHO ICD-10, 2019 version

Coding notes

  • Codes U00-U49 are to be used by WHO for the provisional assignment of new diseases of uncertain etiology. In emergency situations codes are not always accessible in electronic systems. The specification of category U23 in the way it is done here will make sure this category and the subcategories are available in every electronic system at any time and that they can be used upon instruction by WHO, immediately.

Subcodes of U23

U23 in national editions

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

GermanyICD-10-GM

U23Nicht belegte Schlüsselnummern U23.-

  • U23.0Nicht belegte Schlüsselnummer U23.0
  • U23.1Nicht belegte Schlüsselnummer U23.1
  • U23.2Nicht belegte Schlüsselnummer U23.2
  • U23.3Nicht belegte Schlüsselnummer U23.3
  • U23.4Nicht belegte Schlüsselnummer U23.4
  • U23.5Nicht belegte Schlüsselnummer U23.5
  • U23.6Nicht belegte Schlüsselnummer U23.6
  • U23.7Nicht belegte Schlüsselnummer U23.7
  • and 1 more national subcodes

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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