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Diagnosis Code


Code Information

Diagnosis Code: A40.9

Short Description: Streptococcal sepsis, unspecified

Long Description: Streptococcal sepsis, unspecified

The code A40.9 is VALID for claim submission

Code Classification:

  • Certain infectious and parasitic diseases (A00–B99)
    • Other bacterial diseases (A30-A49)
      • Streptococcal sepsis (A40)
        • A40.9 Streptococcal sepsis, unspecified

Code Version: 2022 ICD-10-CM


  • Sepsis caused by anaerobic streptococcus
  • Sepsis due to anaerobic bacteria
  • Sepsis due to Streptococcus
  • Septic shock co-occurrent with acute organ dysfunction due to Gram-positive coccus
  • Septic shock co-occurrent with acute organ dysfunction due to Streptococcus

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
A40.9 Right Arrow 038.0 Streptococcal septicemia
995.91 Sepsis

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
A40 Streptococcal sepsis
A40.0 Sepsis due to streptococcus, group A
A40.1 Sepsis due to streptococcus, group B
A40.3 Sepsis due to Streptococcus pneumoniae
A40.8 Other streptococcal sepsis

This page was last updated on: 10/1/2022