DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

A98 Other viral hemorrhagic fevers, not elsewhere classified

  • Header · not billable

A98 is not billable. The category heads 7 billable codes in FY2027: the 7 codes directly below it.

Index → code

  • Ebola virus disease → A98.4
  • Marburg virus disease → A98.3
  • Nephropathia epidemica → A98.5

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. A90-A99 Arthropod-borne viral fevers and viral hemorrhagic fevers (A90-A99)
  3. A98 Other viral hemorrhagic fevers, not elsewhere classified
Billable codes
7
Subdivisions
7
CC / MCC codes
5 / 0
HCC V28 codes
0
New FY2027
0
Index entries
33

Codes in A98

  1. A98.0
    Crimean-Congo hemorrhagic fever
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Central Asian hemorrhagic fever
  2. A98.1
    Omsk hemorrhagic fever
    BillableCC
  3. A98.2
    Kyasanur Forest disease
    BillableCC
  4. A98.3
    Marburg virus disease
    Billable
  5. A98.4
    Ebola virus disease
    Billable
  6. A98.5
    Hemorrhagic fever with renal syndrome
    BillableCC
    Inclusion terms 7, Excludes1 1

    Inclusion terms

    • Epidemic hemorrhagic fever
    • Korean hemorrhagic fever
    • Russian hemorrhagic fever
    • Hantaan virus disease
    • Hantavirus disease with renal manifestations
    • Nephropathia epidemica
    • Songo fever

    Excludes1

    • hantavirus (cardio)-pulmonary syndrome (B33.4) B33.4
  7. A98.8
    Other specified viral hemorrhagic fevers
    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 A98

Excludes1

  • chikungunya hemorrhagic fever (A92.0) A92.0
  • dengue hemorrhagic fever (A91) A91

Notes that also apply

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

Index entries

  • Crimean hemorrhagic fever → A98.0
  • Omsk hemorrhagic fever → A98.1
  • Kyasanur Forest disease → A98.2
  • Marburg virus disease → A98.3
  • Ebola virus disease → A98.4
  • Hantaan virus disease (Korean hemorrhagic fever) → A98.5
  • Hantavirus disease (with renal manifestations) (Dobrava) (Puumala) (Seoul) → A98.5
  • Nephropathia epidemica → A98.5
  • Nephrosonephritis, hemorrhagic (endemic) → A98.5
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Central Asian hemorrhagic → A98.0
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Congo virus → A98.0
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Crimean-Congo hemorrhagic → A98.0
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Omsk hemorrhagic → A98.1
  • Disease, diseasedKyasanur Forest → A98.2
  • Disease, diseasedMarburg (virus) → A98.3
  • Disease, diseasedEbola (virus) → A98.4
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)epidemic hemorrhagic → A98.5
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Korean hemorrhagic → A98.5
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Russian hemorrhagic → A98.5
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Songo → A98.5
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)hemorrhagic (arthropod-borne) NOSCentral Asian → A98.0
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)hemorrhagic (arthropod-borne) NOSCrimean-Congo → A98.0
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)hemorrhagic (arthropod-borne) NOSOmsk → A98.1
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)hemorrhagic (arthropod-borne) NOSKyasanur forest → A98.2
  • Disease, diseasedHantavirus, with pulmonary manifestationswith renal manifestations → A98.5
  • Disease, diseasedviral, virusHanta (with renal manifestations) (Dobrava) (Puumala) (Seoul) → A98.5
  • Disease, diseasedviral, virusHantaan (Korean hemorrhagic fever) → A98.5
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)hemorrhagic (arthropod-borne) NOSwith renal syndrome → A98.5
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)hemorrhagic (arthropod-borne) NOSepidemic → A98.5
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)hemorrhagic (arthropod-borne) NOSKorean → A98.5
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)hemorrhagic (arthropod-borne) NOSRussian → A98.5
  • Nephrosis, nephrotic (Epstein's) (syndrome) (congenital)inepidemic hemorrhagic fever → A98.5
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)hemorrhagic (arthropod-borne) NOSviralspecified NEC → A98.8

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

Hierarchy