A41.4
Billable codeSepsis due to anaerobes
The ICD-10 code for sepsis due to anaerobes is A41.4.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
- gas gangrene (A48.0)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- A41.0Sepsis due to Staphylococcus aureusnon-billable header
- A41.1Sepsis due to other specified staphylococcus
- A41.2Sepsis due to unspecified staphylococcus
- A41.3Sepsis due to Hemophilus influenzae
- A41.5Sepsis due to other Gram-negative organismsnon-billable header
- A41.8Other specified sepsisnon-billable header
- A41.9Sepsis, unspecified organism
- A41.4Sepsis due to anaerobes
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 0383Approximate match
- 99591Approximate match
Associated MS-DRGs
A41.4 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.