ICD-10-CM 2027
ICD-10 code for Cronobacter sepsis
From the official ICD-10-CM alphabetic index entry “Sepsis (generalized) (unspecified organism) › Cronobacter”. Page updated September 29, 2026.
About coding Cronobacter sepsis
The ICD-10-CM code for Cronobacter sepsis is A41.59 (Other Gram-negative sepsis).
Within A41.5, choose A41.59 (Other Gram-negative sepsis) only when documentation doesn't support a more specific option: gram-negative sepsis, unspecified (A41.50), sepsis due to Escherichia coli [E. coli] (A41.51), sepsis due to Pseudomonas (A41.52), sepsis due to Serratia (A41.53) and sepsis due to Acinetobacter baumannii (A41.54).
Code first: , if applicable, postprocedural sepsis (T81.44-), sepsis due to central venous catheter (T80.211-), sepsis during labor (O75.3), sepsis following abortion, ectopic or molar pregnancy (O03.37, O03.87, O04.87, O07.37, O08.82) and 2 more.
As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" MS-DRG of its family, unless the principal diagnosis excludes it.
Common questions about Cronobacter sepsis ICD-10 codes
What is the ICD-10 code for Cronobacter sepsis?
- A41.59 — Other Gram-negative sepsis.
Is A41.59 billable?
- Yes. A41.59 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A41.59 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A41.59 as a principal diagnosis.
Is A41.59 a CC or MCC?
- A41.59 is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.