A40.21 ICD-10-CA code: Sepsis due to enterococcus
A40.21 is the ICD-10-CA code for “Sepsis due to enterococcus” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
A40.21Sepsis due to enterococcus
ICD-10-CA · Canada · Also written A4021
Index terms
Entries in CIHI’s alphabetical index that lead to A40.21. Searching the index by the condition the note names is how coders reach this code.
- Sepsis (generalized), Enterococcus
Notes for A40.21
As CIHI prints them, with any note A40.21 takes from the headings above it.
Includes
- Diseases generally recognized as communicable or transmissibleFrom Chapter 1: Certain infectious and parasitic diseases (A00-B99)
Use additional code
Add a code for this detail when the note documents it.
- Use additional code (R57.2) to identify septic shockFrom A40 Streptococcal sepsis
- Use additional code (U82-U84) to identify resistance to antimicrobial drugsFrom Chapter 1: Certain infectious and parasitic diseases (A00-B99)
Excludes
Conditions classified elsewhere.
- During labour (O75.3)following:• abortion or ectopic or molar pregnancy (O03-OO7, O08.0)• immunization (T88.0)• infusion, transfusion or therapeutic injection (T80.2)neonatal (P36.0-P36.1)postprocedural (T81.4)puerperal (O85)From A40 Streptococcal sepsis
- Carrier or suspected carrier of infectious disease (Z22.-)certain localized infections - see body system-related chaptersinfectious and parasitic diseases:• complicating pregnancy, childbirth and the puerperium [except obstetrical tetanus] (O98.-)• specific to the perinatal period [except tetanus neonatorum, whooping cough, congenital syphilis, perinatal gonococcal infection and perinatal human immunodeficiency virus [HIV] disease] (P35-P39)influenza and other acute respiratory infections (J00-J22)From Chapter 1: Certain infectious and parasitic diseases (A00-B99)
Where A40.21 sits
- 1ChapterChapter 1: Certain infectious and parasitic diseases (A00-B99)
- 2Block A30-A49Other bacterial diseases
- 3Category A40Streptococcal sepsis
- 4Subcategory A40.2Sepsis due to streptococcus, group D and enterococcus
- 5Valid code A40.21Sepsis due to enterococcus
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 A40.21 mean?
A40.21 is the ICD-10-CA code for “Sepsis due to enterococcus” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is A40.21 in ICD-10-CA?
A40.21 sits under A40.2 Sepsis due to streptococcus, group D and enterococcus, within A40 Streptococcal sepsis, within A30-A49 Other bacterial diseases, within Chapter 1: Certain infectious and parasitic diseases (A00-B99).
What coding notes apply to A40.21?
ICD-10-CA lists Use additional code, Excludes, Includes notes for A40.21, 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.