DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

A22 Anthrax

  • Header · not billable

A22 is not billable. The category heads 6 billable codes in FY2027: the 6 codes directly below it.

Index → code

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. A20-A28 Certain zoonotic bacterial diseases (A20-A28)
  3. A22 Anthrax
Billable codes
6
Subdivisions
6
CC / MCC codes
4 / 2
HCC V28 codes
1
New FY2027
0
Index entries
31

Codes in A22

  1. A22.0
    Cutaneous anthrax
    BillableCC
    Inclusion terms 2

    Inclusion terms

    • Malignant carbuncle
    • Malignant pustule
  2. A22.1
    Pulmonary anthrax
    BillableMCC
    Inclusion terms 3

    Inclusion terms

    • Inhalation anthrax
    • Ragpicker's disease
    • Woolsorter's disease
  3. A22.2
    Gastrointestinal anthrax
    BillableCC
  4. A22.7
    Anthrax sepsis
    BillableMCC2
  5. A22.8
    Other forms of anthrax
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Anthrax meningitis
  6. A22.9
    Anthrax, unspecified
    BillableCC

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

At A22

Includes

  • infection due to Bacillus anthracis

Notes that also apply

Chapter 1 instructions (Includes 1, Excludes2 5, Use additional code 1): printed on the chapter 1 page.

Index entries

  • Ragpicker's disease → A22.1
  • Ragsorter's disease → A22.1
  • Woolsorter's disease → A22.1
  • Anthrax → A22.9
  • Chabert's disease → A22.9
  • Anthraxcutaneous → A22.0
  • Carbunclemalignant → A22.0
  • Furunclemalignant → A22.0
  • Pustule (nonmalignant)malignant → A22.0
  • Anthraxwith pneumonia → A22.1
  • Anthraxinhalation → A22.1
  • Anthraxpulmonary → A22.1
  • Anthraxrespiratory → A22.1
  • Disease, diseasedragpicker's or ragsorter's → A22.1
  • Disease, diseasedwoolsorter's → A22.1
  • Inhalationanthrax → A22.1
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)anthrax → A22.1
  • Anthraxcolitis → A22.2
  • Anthraxgastrointestinal → A22.2
  • Anthraxintestinal → A22.2
  • Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic)anthrax → A22.2
  • Anthraxsepsis → A22.7
  • Sepsis (generalized) (unspecified organism)Bacillus anthracis → A22.7
  • Anthraxcerebral → A22.8
  • Anthraxmeningitis → A22.8
  • Anthraxspecified manifestation NEC → A22.8
  • Bacillusanthracis infection → A22.9
  • Disease, diseasedChabert's → A22.9
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)anthrax → A22.1
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)Bacillus anthracis → A22.1
  • Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic)in (due to)anthrax → A22.8

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy