U83.8 ICD-10-CA code: Resistance to other single specified antibiotic
U83.8 is the ICD-10-CA code for “Resistance to other single specified antibiotic” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
U83.8Resistance to other single specified antibiotic
Short description: Resist othr singl spec antibiotic
ICD-10-CA · Canada · Also written U838
Index terms
Entries in CIHI’s alphabetical index that lead to U83.8. Searching the index by the condition the note names is how coders reach this code.
- Resistance, resistant (to), antibiotic, antibiotics, specified single NEC
Notes for U83.8
As CIHI prints them, with any note U83.8 takes from the headings above it.
Use additional code
Add a code for this detail when the note documents it.
- Use additional code (B95-B98) to identify agents resistant to other antibiotic treatment.From U83 Resistance to other antibiotics
Note
- This category should never be used in primary coding. These codes are provided for use as supplementary or additional codes to identify the resistance of a condition to antimicrobial drugs.From U83 Resistance to other antibiotics
Where U83.8 sits
- 1ChapterChapter 23: Provisional Codes for Research and Temporary Assignment
- 2Block U50-U99Provisional codes for research and temporary assignment in Canada
- 3Category U83Resistance to other antibiotics
- 4Valid code U83.8Resistance to other single specified antibiotic
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
What does ICD-10-CA code U83.8 mean?
U83.8 is the ICD-10-CA code for “Resistance to other single specified antibiotic” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is U83.8 in ICD-10-CA?
U83.8 sits under U83 Resistance to other antibiotics, within U50-U99 Provisional codes for research and temporary assignment in Canada, within Chapter 23: Provisional Codes for Research and Temporary Assignment.
What coding notes apply to U83.8?
ICD-10-CA lists Note, Use additional code notes for U83.8, 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.