A41.9
ICD-10BillableSepsis, unspecified organism
Official ICD-10-CM descriptor (FY2026)
Sepsis, unspecified organism
A41.9 is valid for submission on a claim — CMS flags it as a billable, specific code.
Inclusion terms
- Septicemia NOS
Related codes in A41
- A41.0Sepsis due to Staphylococcus aureuscategory
- A41.1Sepsis due to other specified staphylococcus
- A41.2Sepsis due to unspecified staphylococcus
- A41.3Sepsis due to Hemophilus influenzae
- A41.4Sepsis due to anaerobes
- A41.5Sepsis due to other Gram-negative organismscategory
- A41.8Other specified sepsiscategory
Where this code sits
- Parent code
- A41
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.