022.9 is a legacy non-billable code used to specify a medical diagnosis of anthrax, unspecified. This code was replaced on September 30, 2015 by its ICD-10 equivalent.
References found for the code 022.9 in the Index of Diseases and Injuries:
Anthrax is a disease caused by Bacillus anthracis, a germ that lives in soil. Many people know about it from the 2001 bioterror attacks. In the attacks, someone purposely spread anthrax through the U.S. mail. This killed five people and made 22 sick.
General Equivalence Map Definitions The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
An acute infection caused by the spore-forming bacteria bacillus anthracis. It commonly affects hoofed animals such as sheep and goats. Infection in humans often involves the skin (cutaneous anthrax), the lungs (inhalation anthrax), or the gastrointestinal tract. Anthrax is not contagious and can be treated with antibiotics.
The 2022 edition of ICD-10-CM A22.9 became effective on October 1, 2021.
gastrointestinal, which affects the digestive system. You can get it by eating infected meat.