All ICD10 Codes

A22

Non-Billable
ChapterA00–B99
Rankcategory
Official Description

Anthrax

Use a more specific code (6 billable)
A22.0Cutaneous anthraxA22.1Pulmonary anthraxA22.2Gastrointestinal anthraxA22.7Anthrax sepsisA22.8Other forms of anthraxA22.9Anthrax, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).

CH1 Parent Instructions

Includes
  • diseases generally recognized as communicable or transmissible
Excludes1(Not coded here. Use a different code.)
  • certain localized infections - see body system-related chapters
Excludes2(Not included here. Code separately if applicable.)
  • carrier or suspected carrier of infectious disease (Z22.-)
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)
Use Additional Code
  • code to identify resistance to antimicrobial drugs (Z16.-)

Instructional Notes

Includes
  • infection due to Bacillus anthracis

Clinical Hierarchy

BillableHas subcodes
CH1Certain infectious and parasitic diseases (A00-B99)
A20-A28Certain zoonotic bacterial diseases (A20-A28)
A22AnthraxNot billable
A22.0Cutaneous anthraxBillable
A22.1Pulmonary anthraxBillable
A22.2Gastrointestinal anthraxBillable
A22.7Anthrax sepsisBillable
A22.8Other forms of anthraxBillable
A22.9Anthrax, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to A22:

chapterCH1
Certain infectious and parasitic diseases (A00-B99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Anthrax.

Search PCS Codes