DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

A93 Other arthropod-borne viral fevers, not elsewhere classified

  • Header · not billable

A93 is not billable. The category heads 4 billable codes in FY2027: the 4 codes directly below it.

Index → code

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. A93 Other arthropod-borne viral fevers, not elsewhere classified
Billable codes
4
Subdivisions
4
CC / MCC codes
4 / 0
HCC V28 codes
0
New FY2027
0
Index entries
45

Codes in A93

  1. A93.0
    Oropouche virus disease
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Oropouche fever
  2. A93.1
    Sandfly fever
    BillableCC
    Inclusion terms 2

    Inclusion terms

    • Pappataci fever
    • Phlebotomus fever
  3. A93.2
    Colorado tick fever
    BillableCC
  4. A93.8
    Other specified arthropod-borne viral fevers
    BillableCC
    Inclusion terms 2

    Inclusion terms

    • Piry virus disease
    • Vesicular stomatitis virus disease [Indiana fever]

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

  • Changuinola fever → A93.1
  • Chitral fever → A93.1
  • Phlebotomus fever → A93.1
  • Sandfly fever → A93.1
  • Three-day fever → A93.1
  • Nonexanthematous tick fever → A93.2
  • Heartland virus disease → A93.8
  • Disease, diseasedOropouche virus → A93.0
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Oropouche (viral) → A93.0
  • Dengue (classical) (fever)sandfly → A93.1
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Changuinola → A93.1
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Chitral → A93.1
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Pappataci → A93.1
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)phlebotomus → A93.1
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)sandfly → A93.1
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)three-day → A93.1
  • Grippe, grippalsummer, of Italy → A93.1
  • Americanmountain tick fever → A93.2
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Colorado tick (virus) → A93.2
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)non-exanthematous tick → A93.2
  • Mountaintick fever → A93.2
  • Disease, diseasedHeartland → A93.8
  • Disease, diseasedNairobi (sheep virus) → A93.8
  • Disease, diseasedPiry virus → A93.8
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Indiana → A93.8
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Piry (virus) → A93.8
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)tick-bite NEC → A93.8
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)tick-borne (hemorrhagic) NEC → A93.8
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)vesicular stomatitis → A93.8
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)dengue (virus)sandfly → A93.1
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)Americanmountain (tick) → A93.2
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)mountaintick (American) (Colorado) (viral) → A93.2
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)tickAmerican mountain → A93.2
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)tickColorado → A93.2
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)tickmountain → A93.2
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)ticknonexanthematous → A93.2
  • Disease, diseasedarthropod-borne NOS (viral)specified type NEC → A93.8
  • Disease, diseasedviral, virusvesicular stomatitis → A93.8
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)arbovirus, arboviralspecified NEC → A93.8
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)hemorrhagic (arthropod-borne) NOSmite-borne → A93.8

5 more, longer entries are not listed; the search box finds them by word.

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

Hierarchy