B50-B64 Protozoal diseases

ICD-10-CM-tabular April 1 2023

Protozoal diseases (B50-B64) Excludes1: amebiasis (A06.-)

other protozoal intestinal diseases (A07.-)

B50 Plasmodium falciparum malaria

Includes: mixed infections of Plasmodium falciparum with any other Plasmodium species

B50.0 Plasmodium falciparum malaria with cerebral complications

Cerebral malaria NOS

B50.8 Other severe and complicated Plasmodium falciparum malaria

Severe or complicated Plasmodium falciparum malaria NOS

B50.9 Plasmodium falciparum malaria, unspecified

  1. B51  Plasmodium vivax malaria Includes: mixed infections of Plasmodium vivax with other Plasmodium species, except Plasmodium falciparum Excludes1: plasmodium vivax with Plasmodium falciparum (B50.-)
    B51.0 Plasmodium vivax malaria with rupture of spleen
    B51.8 Plasmodium vivax malaria with other complications
    B51.9 Plasmodium vivax malaria without complication Plasmodium vivax malaria NOS
  2. B52  Plasmodium malariae malaria
    Includes:
    mixed infections of Plasmodium malariae with other Plasmodium species, except Plasmodium falciparum and Plasmodium vivax Excludes1: Plasmodium falciparum (B50.-) Plasmodium vivax (B51.-) B52.0 Plasmodium malariae malaria with nephropathy B52.8 Plasmodium malariae malaria with other complications B52.9 Plasmodium malariae malaria without complication Plasmodium malariae malaria NOS
  3. B53  Other specified malaria
    B53.0 Plasmodium ovale malaria
    Excludes1: Plasmodium ovale with Plasmodium falciparum (B50.-) Plasmodium ovale with Plasmodium malariae (B52.-) Plasmodium ovale with Plasmodium vivax (B51.-) B53.1 Malaria due to simian plasmodia Excludes1: Malaria due to simian plasmodia with Plasmodium falciparum (B50.-) Malaria due to simian plasmodia with Plasmodium malariae (B52.-) Malaria due to simian plasmodia with Plasmodium ovale (B53.0) Malaria due to simian plasmodia with Plasmodium vivax (B51.-) B53.8 Other malaria, not elsewhere classified
  4. B54  Unspecified malaria
  5. B55  Leishmaniasis B55.0 Visceral leishmaniasis Kala-azar
    Post-kala-azar dermal leishmaniasis B55.1 Cutaneous leishmaniasis B55.2 Mucocutaneous leishmaniasis B55.9 Leishmaniasis, unspecified

B56 African trypanosomiasis

B56.0 Gambiense trypanosomiasis

Infection due to Trypanosoma brucei gambiense West African sleeping sickness

B56.1 Rhodesiense trypanosomiasis

East African sleeping sickness
Infection due to Trypanosoma brucei rhodesiense

B56.9 African trypanosomiasis, unspecified

Sleeping sickness NOS

  1. B57  Chagas’ disease
    Includes:
    American trypanosomiasis infection due to Trypanosoma cruzi B57.0 Acute Chagas’ disease with heart involvement Acute Chagas’ disease with myocarditis B57.1 Acute Chagas’ disease without heart involvement Acute Chagas’ disease NOS B57.2 Chagas’ disease (chronic) with heart involvement American trypanosomiasis NOS
    Chagas’ disease (chronic) NOS
    Chagas’ disease (chronic) with myocarditis Trypanosomiasis NOS
    1. B57.3  Chagas’ disease (chronic) with digestive system involvement
      B57.30 Chagas’ disease with digestive system involvement, unspecified B57.31 Megaesophagus in Chagas’ disease
      B57.32 Megacolon in Chagas’ disease
      B57.39 Other digestive system involvement in Chagas’ disease
    2. B57.4  Chagas’ disease (chronic) with nervous system involvement
      B57.40 Chagas’ disease with nervous system involvement, unspecified B57.41 Meningitis in Chagas’ disease
      B57.42 Meningoencephalitis in Chagas’ disease
      B57.49 Other nervous system involvement in Chagas’ disease
    3. B57.5  Chagas’ disease (chronic) with other organ involvement
  2. B58  Toxoplasmosis Includes: infection due to Toxoplasma gondii Excludes1: congenital toxoplasmosis (P37.1) B58.0 Toxoplasma oculopathy B58.00 Toxoplasma oculopathy, unspecified B58.01 Toxoplasma chorioretinitis

B58.09 Other toxoplasma oculopathy

Toxoplasma uveitis

B58.1 Toxoplasma hepatitis
B58.2 Toxoplasma meningoencephalitis
B58.3 Pulmonary toxoplasmosis
B58.8 Toxoplasmosis with other organ involvement

  1. B58.81  Toxoplasma myocarditis
  2. B58.82  Toxoplasma myositis
  3. B58.83  Toxoplasma tubulo-interstitial nephropathy Toxoplasma pyelonephritis

B58.89 Toxoplasmosis with other organ involvement B58.9 Toxoplasmosis, unspecified

  1. B59  Pneumocystosis Pneumonia due to Pneumocystis carinii Pneumonia due to Pneumocystis jiroveci
  2. B60  Other protozoal diseases, not elsewhere classifiedExcludes1: cryptosporidiosis (A07.2) intestinal microsporidiosis (A07.8) isosporiasis (A07.3) B60.0 Babesiosis
    1. B60.00  Babesiosis, unspecified Babesiosis due to unspecified Babesia species Piroplasmosis, unspecified
    2. B60.01  Babesiosis due to Babesia microti Infection due to B. microti
    3. B60.02  Babesiosis due to Babesia duncani Infection due to B. duncani and B. duncani-type species
    4. B60.03  Babesiosis due to Babesia divergens Babesiosis due to Babesia MO-1
      Infection due to B. divergens and B. divergens-like strains

B60.09 Other babesiosis

Babesiosis due to Babesia KO-1
Babesiosis due to Babesia venatorum
Infection due to other Babesia species
Infection due to other protozoa of the order Piroplasmida Other piroplasmosis

B60.1 Acanthamebiasis
B60.10 Acanthamebiasis, unspecified
B60.11 Meningoencephalitis due to Acanthamoeba (culbertsoni) B60.12 Conjunctivitis due to Acanthamoeba

B60.13 Keratoconjunctivitis due to Acanthamoeba

B60.19 Other acanthamebic disease B60.2 Naegleriasis

Primary amebic meningoencephalitis

B60.8 Other specified protozoal diseases

Microsporidiosis

B64 Unspecified protozoal disease

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