ICD-10-CM 2027
ICD-10 code for Cronobacter sakazakii infection
From the official ICD-10-CM alphabetic index entry “Infection, infected, infective (opportunistic) › Cronobacter (sakazakii)”. Page updated September 29, 2026.
About coding Cronobacter sakazakii infection
The ICD-10-CM code for Cronobacter sakazakii infection is A49.8 (Other bacterial infections of unspecified site). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on A49.8.
Within A49, choose A49.8 (Other bacterial infections of unspecified site) only when documentation doesn't support a more specific option: staphylococcal infection, unspecified site (A49.0), streptococcal infection, unspecified site (A49.1), hemophilus influenzae infection, unspecified site (A49.2), mycoplasma infection, unspecified site (A49.3) and bacterial infection, unspecified (A49.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 867 (Other Infectious and Parasitic Diseases Diagnoses with MCC, relative weight 2.1859), DRG 868 (Other Infectious and Parasitic Diseases Diagnoses with CC, relative weight 1.0235) and DRG 869 (Other Infectious and Parasitic Diseases Diagnoses without CC/MCC, relative weight 0.6787), in MDC 18 (Infectious and Parasitic Diseases, Systemic or Unspecified Sites), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Cronobacter sakazakii infection codes (official index)
Common questions about Cronobacter sakazakii infection ICD-10 codes
What is the ICD-10 code for Cronobacter sakazakii infection?
- A49.8 — Other bacterial infections of unspecified site. More specific codes apply when the documentation supports them: B96.89, A41.59.
What is the ICD-10 code for generalized cronobacter sakazakii infection?
- A41.59 — Other Gram-negative sepsis.
Is A49.8 billable?
- Yes. A49.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A49.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A49.8 as a principal diagnosis.
Is A49.8 a CC or MCC?
- No. A49.8 is neither a CC nor an MCC under MS-DRG v44.0.