A40
⚠ Non-billable
Streptococcal sepsis
ICD-10-CM · FY2026 · Certain Infectious and Parasitic Diseases
Code
A40
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Certain Infectious and Parasitic Diseases
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Excludes1 — never code together
- neonatal (P36.0-P36.1)
- puerperal sepsis (O85)
- sepsis due to Streptococcus, group D (A41.81)
Code first
- , if applicable, postprocedural sepsis (T81.44-)
- sepsis due to central venous catheter (T80.211-)
- streptococcal sepsis during labor (O75.3)
- streptococcal sepsis following abortion or ectopic or molar pregnancy (O03.37, O03.87, O04.87, O07.37, O08.82)
- streptococcal sepsis following immunization (T88.0-)
- streptococcal sepsis following infusion, transfusion or therapeutic injection (T80.22-, T80.29-)
Frequently asked questions
What is ICD-10 code A40?
ICD-10-CM code A40 represents Streptococcal sepsis. It is a non-billable header code requiring a more specific subcategory in the Certain Infectious and Parasitic Diseases chapter, effective October 1, 2025 – September 30, 2026.
Is A40 billable?
No. A40 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is A40 in?
A40 belongs to the Certain Infectious and Parasitic Diseases chapter (A00–B99) of ICD-10-CM.
Related codes in the A40 category
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