U04 ICD-10-CA category: Severe acute respiratory syndrome [SARS]
U04 isn’t a code on its own. Choose one of the 2 codes beneath it, the one the documentation supports.
Official description
U04Severe acute respiratory syndrome [SARS]
ICD-10-CA · Canada
Codes in U04
U04 isn’t a code on its own. Open the code that matches what the note documents.
Notes for U04
As CIHI prints them, with any note U04 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- COVID-19, virus identified (U07.1)COVID-19, virus not identified (U07.2)
Where U04 sits
- 1ChapterChapter 23: Provisional Codes for Research and Temporary Assignment
- 2Block U00-U49Provisional codes for temporary assignment by World Health Organization of new diseases of uncertain etiology or emergency use
- 3Category U04Severe acute respiratory syndrome [SARS]
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 U04 a valid ICD-10-CA code?
No. U04 (Severe acute respiratory syndrome [SARS]) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 2 codes; record the one the documentation supports.
Where is U04 in ICD-10-CA?
U04 sits under U00-U49 Provisional codes for temporary assignment by World Health Organization of new diseases of uncertain etiology or emergency use, within Chapter 23: Provisional Codes for Research and Temporary Assignment.
What coding notes apply to U04?
ICD-10-CA lists Excludes notes for U04, including those from the headings it sits under. They are listed on this page with where each one comes from.
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.