U00-U49 ICD-10-CA block: Provisional codes for temporary assignment by World Health Organization of new diseases of uncertain etiology or emergency use

U00-U49 isn’t a code on its own. Choose one of the 10 codes beneath it, the one the documentation supports.

Official description

U00-U49

Provisional codes for temporary assignment by World Health Organization of new diseases of uncertain etiology or emergency use (U00-U49)

ICD-10-CA · Canada

Codes in U00-U49

U00-U49 isn’t a code on its own. Open the group that matches what the note documents.

Notes for U00-U49

CIHI’s list gives no includes, excludes or other notes for U00-U49 or the headings above it.

Where U00-U49 sits

  1. 1ChapterChapter 23: Provisional Codes for Research and Temporary Assignment
  2. 2Block U00-U49Provisional codes for temporary assignment by World Health Organization of new diseases of uncertain etiology or emergency use

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

Frequently asked questions

Is U00-U49 a valid ICD-10-CA code?

No. U00-U49 (Provisional codes for temporary assignment by World Health Organization of new diseases of uncertain etiology or emergency use) is a block heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 10 codes; record the one the documentation supports.

Where is U00-U49 in ICD-10-CA?

U00-U49 sits under Chapter 23: Provisional Codes for Research and Temporary Assignment.

What coding notes apply to U00-U49?

CIHI’s list gives no includes, excludes or other notes for U00-U49 or the headings above it.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.