ICD-10-CM > A00-B99 > A20-A28 > A22 A22 Anthrax Non-Billable/Non-Specific Includes infection due to Bacillus anthracis Codes A22.0Cutaneous anthraxA22.1Pulmonary anthraxA22.2Gastrointestinal anthraxA22.7Anthrax sepsisA22.8Other forms of anthraxA22.9Anthrax, unspecified