A22.7 Anthrax sepsis

Billable ICD-10-CM code, FY2026. Acts as a Major Complication or Comorbidity (MCC) as a secondary diagnosis.

Applies from A22 Anthrax

Includes

• infection due to Bacillus anthracis

Risk adjustment (HCC)

• CMS-HCC V28: HCC 2 — Septicemia, Sepsis, Systemic Inflammatory Response Syndrome/Shock
• CMS-HCC V22: HCC 2 — Septicemia, Sepsis, Systemic Inflammatory Response Syndrome/Shock
• ESRD V24: HCC 2

MS-DRG index

Defines the logic of DRG(s) 870-872 in MDC 18.

Approximate ICD-9-CM (GEMs)

• 022.3 Anthrax septicemia (approximate)
• 995.91 Sepsis (approximate)

Code annotations containing back-references to A22.7

Back-references to A22.7

• Type 2 Excludes: A41 Other sepsis ("sepsis (due to) (in) anthrax (A22.7)")

Diagnosis Index entries for A22.7

• Anthrax › sepsis
• Sepsis (generalized) (unspecified organism) › Bacillus anthracis

Nearby codes

• A22 Anthrax
• A22.0 Cutaneous anthrax
• A22.1 Pulmonary anthrax
• A22.2 Gastrointestinal anthrax
• A22.7 Anthrax sepsis (this code)
• A22.8 Other forms of anthrax
• A22.9 Anthrax, unspecified