DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

A21 Tularemia

  • Header · not billable

A21 is not billable. The category heads 7 billable codes in FY2027: the 7 codes directly below it.

Index → code

  • Tularemia → A21.9
  • Tularensis conjunctivitis → A21.1
  • Tularemiasepsis → A21.7

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. A20-A28 Certain zoonotic bacterial diseases (A20-A28)
  3. A21 Tularemia
Billable codes
7
Subdivisions
7
CC / MCC codes
7 / 0
HCC V28 codes
0
New FY2027
0
Index entries
28

Codes in A21

  1. A21.0
    Ulceroglandular tularemia
    BillableCC
  2. A21.1
    Oculoglandular tularemia
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Ophthalmic tularemia
  3. A21.2
    Pulmonary tularemia
    BillableCC
  4. A21.3
    Gastrointestinal tularemia
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Abdominal tularemia
  5. A21.7
    Generalized tularemia
    BillableCC
  6. A21.8
    Other forms of tularemia
    BillableCC
  7. A21.9
    Tularemia, 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 A21

Includes

  • deer-fly fever
  • infection due to Francisella tularensis
  • rabbit fever

Notes that also apply

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

Index entries

  • Tularensis conjunctivitis → A21.1
  • Tularemia → A21.9
  • Tularemiaulceroglandular → A21.0
  • Conjunctivitis (staphylococcal) (streptococcal) NOStularemic → A21.1
  • Conjunctivitis (staphylococcal) (streptococcal) NOStularensis → A21.1
  • Tularemiaconjunctivitis → A21.1
  • Tularemiaoculoglandular → A21.1
  • Tularemiaophthalmic → A21.1
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)tularemic → A21.2
  • Tularemiabronchopneumonic → A21.2
  • Tularemiapneumonia (any), pneumonic → A21.2
  • Tularemiapulmonary → A21.2
  • Ingestiontularemia → A21.3
  • Tularemiaabdominal → A21.3
  • Tularemiacryptogenic → A21.3
  • Tularemiaenteric → A21.3
  • Tularemiagastrointestinal → A21.3
  • Tularemiaingestion → A21.3
  • Tularemiaintestinal → A21.3
  • Sepsis (generalized) (unspecified organism)tularemic → A21.7
  • Tularemiageneralized → A21.7
  • Tularemiasepsis → A21.7
  • Tularemiatyphoidal → A21.7
  • Tularemiaspecified NEC → A21.8
  • Tularemiawithconjunctivitis → A21.1
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)tularemia → A21.2
  • Tularemiawithpneumonia → A21.2
  • Tracheobronchitis (15 years of age and above)due toFrancisella tularensis → A21.8

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

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