DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

A07 Other protozoal intestinal diseases

  • Header · not billable

A07 is not billable. The category heads 7 billable codes in FY2027: the 7 codes directly below it.

Index → code

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. A00-A09 Intestinal infectious diseases (A00-A09)
  3. A07 Other protozoal intestinal diseases
Billable codes
7
Subdivisions
7
CC / MCC codes
6 / 0
HCC V28 codes
1
New FY2027
0
Index entries
67

Codes in A07

  1. A07.0
    Balantidiasis
    Billable
    Inclusion terms 1

    Inclusion terms

    • Balantidial dysentery
  2. A07.1
    Giardiasis [lambliasis]
    BillableCC
  3. A07.2
    Cryptosporidiosis
    BillableCC6
  4. A07.3
    Isosporiasis
    BillableCC
    Inclusion terms 3

    Inclusion terms

    • Infection due to Isospora belli and Isospora hominis
    • Intestinal coccidiosis
    • Isosporosis
  5. A07.4
    Cyclosporiasis
    BillableCC
  6. A07.8
    Other specified protozoal intestinal diseases
    BillableCC
    Inclusion terms 4

    Inclusion terms

    • Intestinal microsporidiosis
    • Intestinal trichomoniasis
    • Sarcocystosis
    • Sarcosporidiosis
  7. A07.9
    Protozoal intestinal disease, unspecified
    BillableCC
    Inclusion terms 4

    Inclusion terms

    • Flagellate diarrhea
    • Protozoal colitis
    • Protozoal diarrhea
    • Protozoal dysentery

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

  • Balantidiasis, balantidiosis → A07.0
  • Giardiasis → A07.1
  • Lambliasis, lambliosis → A07.1
  • Cryptosporidiosis → A07.2
  • Coccidiosis (intestinal) → A07.3
  • Isosporiasis, isosporosis → A07.3
  • Cyclosporiasis → A07.4
  • Chilomastigiasis → A07.8
  • Embadomoniasis → A07.8
  • Retortamoniasis → A07.8
  • Sarcocystosis → A07.8
  • Sarcosporidiosis (intestinal) → A07.8
  • Anemia (essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)Balantidium coli → A07.0
  • Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic)balantidial → A07.0
  • Diarrhea, diarrheal (disease) (infantile) (inflammatory)balantidial → A07.0
  • Dysentery, dysenteric (catarrhal) (diarrhea) (epidemic) (hemorrhagic) (infectious) (sporadic) (tropical)balantidial → A07.0
  • Dysentery, dysenteric (catarrhal) (diarrhea) (epidemic) (hemorrhagic) (infectious) (sporadic) (tropical)Balantidium coli → A07.0
  • Infection, infected, infective (opportunistic)Balantidium coli → A07.0
  • InfestationBalantidium coli → A07.0
  • Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic)giardial → A07.1
  • Diarrhea, diarrheal (disease) (infantile) (inflammatory)Giardia lamblia → A07.1
  • Diarrhea, diarrheal (disease) (infantile) (inflammatory)giardial → A07.1
  • Dysentery, dysenteric (catarrhal) (diarrhea) (epidemic) (hemorrhagic) (infectious) (sporadic) (tropical)Giardia lamblia → A07.1
  • Dysentery, dysenteric (catarrhal) (diarrhea) (epidemic) (hemorrhagic) (infectious) (sporadic) (tropical)Lamblia → A07.1
  • Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective)giardial → A07.1
  • Infection, infected, infective (opportunistic)Giardia lamblia → A07.1
  • InfestationGiardia lamblia → A07.1
  • Infection, infected, infective (opportunistic)Cryptosporidium → A07.2
  • Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic)coccidial → A07.3
  • Diarrhea, diarrheal (disease) (infantile) (inflammatory)coccidial → A07.3
  • Dysentery, dysenteric (catarrhal) (diarrhea) (epidemic) (hemorrhagic) (infectious) (sporadic) (tropical)coccidial → A07.3
  • Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective)coccidial → A07.3
  • Infection, infected, infective (opportunistic)Isospora belli or hominis → A07.3
  • Infestationcoccidial → A07.3
  • Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic)trichomonal → A07.8
  • Diarrhea, diarrheal (disease) (infantile) (inflammatory)Chilomastix → A07.8
  • Diarrhea, diarrheal (disease) (infantile) (inflammatory)Dientamoeba → A07.8
  • Diarrhea, diarrheal (disease) (infantile) (inflammatory)trichomonal → A07.8
  • Dysentery, dysenteric (catarrhal) (diarrhea) (epidemic) (hemorrhagic) (infectious) (sporadic) (tropical)Chilomastix → A07.8
  • Dysentery, dysenteric (catarrhal) (diarrhea) (epidemic) (hemorrhagic) (infectious) (sporadic) (tropical)Dientamoeba (fragilis) → A07.8

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

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