DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

A28 Other zoonotic bacterial diseases, not elsewhere classified

  • Header · not billable

A28 is not billable. The category heads 5 billable codes in FY2027: the 5 codes directly below it.

Index → code

  • Vibriosis → A28.9
  • Pseudotuberculosis → A28.2
  • Pasteurella septica → A28.0

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. A20-A28 Certain zoonotic bacterial diseases (A20-A28)
  3. A28 Other zoonotic bacterial diseases, not elsewhere classified
Billable codes
5
Subdivisions
5
CC / MCC codes
5 / 0
HCC V28 codes
0
New FY2027
0
Index entries
25

Codes in A28

  1. A28.0
    Pasteurellosis
    BillableCC
  2. A28.1
    Cat-scratch disease
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Cat-scratch fever
  3. A28.2
    Extraintestinal yersiniosis
    BillableCC
    Excludes1 2

    Excludes1

    • enteritis due to Yersinia enterocolitica (A04.6) A04.6
    • plague (A20.-) A20
  4. A28.8
    Other specified zoonotic bacterial diseases, not elsewhere classified
    BillableCC
  5. A28.9
    Zoonotic bacterial disease, 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

Notes that also apply

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

Index entries

  • Pasteurella septica → A28.0
  • Lymphoreticulosis, benign (of inoculation) → A28.1
  • Pseudotuberculosis → A28.2
  • Actinobacillosis, actinobacillus → A28.8
  • Vibriosis → A28.9
  • Adenitisdue to Pasteurella multocida (P. septica) → A28.0
  • Infection, infected, infective (opportunistic)Pasteurella NEC → A28.0
  • Pseudotuberculosispasteurella (infection) → A28.0
  • Sepsis (generalized) (unspecified organism)Pasteurella multocida → A28.0
  • Cat-scratchdisease or fever → A28.1
  • Disease, diseasedcat-scratch → A28.1
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)cat-scratch → A28.1
  • Sepsis (generalized) (unspecified organism)extraintestinal yersiniosis → A28.2
  • Yersiniosisextraintestinal → A28.2
  • Infection, infected, infective (opportunistic)Actinobacillus (actinomycetem-comitans) → A28.8
  • Disease, diseasedzoonotic, bacterial → A28.9
  • Infection, infected, infective (opportunistic)zoonotic bacterial NOS → A28.9
  • Infection, infected, infective (opportunistic)Pasteurella NECmultocida → A28.0
  • Infection, infected, infective (opportunistic)Pasteurella NECpseudotuberculosis → A28.0
  • Infection, infected, infective (opportunistic)Pasteurella NECseptica (cat bite) (dog bite) → A28.0
  • Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute)due tocat scratch disease → A28.1
  • Infection, infected, infective (opportunistic)Yersiniapseudotuberculosis → A28.2
  • Disease, diseasedzoonotic, bacterialspecified type NEC → A28.8
  • Disease, diseasedbacterialzoonotic → A28.9
  • Disease, diseasedbacterialzoonoticspecified type NEC → A28.8

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

Hierarchy