Other specified protozoal intestinal diseases

This code signifies intestinal infections caused by protozoa that are not specifically classified elsewhere in the ICD-10-CM system. It covers a range of parasitic conditions affecting the gastrointestinal tract, excluding those with dedicated codes like giardiasis or cryptosporidiosis. These infections can lead to symptoms such as diarrhea, abdominal pain, and malabsorption.

Use this code when documentation clearly identifies a protozoal intestinal infection, but the specific protozoan species is not explicitly listed under more specific ICD-10-CM codes (e.g., A07.1 for Giardiasis). This code is appropriate for conditions like Dientamoeba fragilis infection or Blastocystis hominis infection when they are symptomatic and affecting the intestines. Supporting documentation should include laboratory confirmation of the protozoan and evidence of intestinal involvement.

• Ensure the documentation specifies "other" or an unlisted protozoal species affecting the intestines.
• Avoid using this code if a more specific code for the identified protozoal infection is available (e.g., A07.1 for Giardiasis).
• Always review lab results and physician notes for definitive identification of the protozoan and its site of infection.