Malaria – Definitions & ICD 11 Codes

Definition of Malaria: A disease caused by an infection with a protozoan parasite from the Plasmodium genus. This disease commonly presents with fever, chills, headache, nausea and vomiting, or malaise. Transmission is through the bite of an infected mosquito. Confirmation is commonly by identification of the Plasmodium genus in a blood sample.

Coding Note:

• In cases of mixed malaria code all relevant types separately.

Coded Elsewhere:

• HIV disease clinical stage 4 associated with malaria (1C61.3)
• HIV disease clinical stage 3 associated with malaria (1C61.2)
• HIV disease clinical stage 2 associated with malaria (1C61.1)
• HIV disease clinical stage 1 associated with malaria (1C61.0)
• Human immunodeficiency virus disease associated with malaria (1C61)
• Malaria complicating pregnancy, childbirth, or the puerperium (JB63.60)
• Other congenital malaria (KA64.Y)

Malaria due to Plasmodium falciparum

Definition of Malaria due to Plasmodium falciparum: A disease caused by an infection with the protozoan parasite Plasmodium falciparum. This disease is characterised by fever, chills, headache, myalgia, arthralgia, weakness, vomiting, or diarrhoea. This disease may also present with splenomegaly, anaemia, thrombocytopenia, hypoglycaemia, pulmonary or renal dysfunction, or neurologic changes. Transmission is through the bite of an infected mosquito. Confirmation is by identification of Plasmodium falciparum in a blood sample.

ICD 11 Code For Malaria due to Plasmodium falciparum

  1F40  Malaria due to Plasmodium falciparum

Coding Note:

• Includes mixed infections of Plasmodium falciparum with any other Plasmodium species.

Coded Elsewhere:

• Congenital falciparum malaria (KA64.1)

1F40.0 Plasmodium falciparum malaria with cerebral complications

Definition of Plasmodium falciparum malaria with cerebral complications: A disease of the cerebrum, caused by an infection with the protozoan parasite Plasmodium falciparum. This disease commonly presents with retinal whitening, splenomegaly, anaemia, thrombocytopenia, hypoglycaemia, pulmonary dysfunction, renal dysfunction, or neurologic changes. This disease may also present with fever, chills, headache, myalgia, arthralgia, weakness, vomiting, or diarrhoea. Transmission is through the bite of an infected mosquito. Confirmation is by identification of Plasmodium falciparum in a blood sample.

1F40.Y Other severe and complicated Plasmodium falciparum malaria

Coding Note:

• Includes mixed infections of Plasmodium falciparum with any other Plasmodium species.

1F40.Z Malaria due to Plasmodium falciparum unspecified

Coding Note:

• Includes mixed infections of Plasmodium falciparum with any other Plasmodium species.

Malaria due to Plasmodium vivax

Definition of Malaria due to Plasmodium vivax: A disease caused by an infection with the protozoan parasite Plasmodium vivax. This disease is characterised by fever, chills, headache, nausea and vomiting, body aches, or general malaise. Transmission is through the bite of an infected mosquito. Confirmation is by identification of Plasmodium vivax in a blood sample.

ICD 11 Code For Malaria due to Plasmodium vivax

  1F41  Malaria due to Plasmodium vivax

Exclusions:

• when mixed with Plasmodium falciparum (1F40)

1F41.0 Plasmodium vivax malaria with rupture of spleen

1F41.Y Malaria due to Plasmodium vivax with other complications

1F41.Z Plasmodium vivax malaria without complication

Malaria due to Plasmodium malariae

Definition of Malaria due to Plasmodium malariae: A disease caused by an infection with the protozoan parasite Plasmodium malariae. This disease is characterised by fever, chills, headache, nausea and vomiting, body aches, or general malaise. Transmission is through the bite of an infected mosquito. Confirmation is by identification of Plasmodium malariae in a blood sample.

ICD 11 Code For Malaria due to Plasmodium malariae

  1F42  Malaria due to Plasmodium malariae

Exclusions:

• when mixed with Plasmodium vivax (1F41)
• when mixed with Plasmodium falciparum (1F40)

1F42.0 Plasmodium malariae malaria with nephropathy

Definition of Plasmodium malariae malaria with nephropathy: Quartan malarial nephropathy is a rare complication of malariae (quartan) malaria, especially occurring in children; it is a glomerulonephritis, usually fatal.

1F42.Y Malaria due to Plasmodium malariae with other complications

1F42.Z Plasmodium malariae malaria without complication

Malaria due to Plasmodium ovale

Definition of Malaria due to Plasmodium ovale: A disease caused by an infection with the protozoan parasite Plasmodium ovale. This disease is characterised by fever, chills, headache, nausea and vomiting, body aches, or general malaise. Transmission is through the bite of an infected mosquito. Confirmation is by identification of Plasmodium ovale in a blood sample.

ICD 11 Code For Malaria due to Plasmodium ovale

  1F43  Malaria due to Plasmodium ovale

Exclusions:

• when mixed with Plasmodium malariae (1F42)
• when mixed with Plasmodium falciparum (1F40)
• when mixed with Plasmodium vivax (1F41)

Other parasitologically confirmed malaria

ICD 11 Code For Other parasitologically confirmed malaria

  1F44  Other parasitologically confirmed malaria

Malaria without parasitological confirmation

ICD 11 Code For Malaria without parasitological confirmation

  1F45  Malaria without parasitological confirmation

Definition of Malaria without parasitological confirmation: Clinically diagnosed malaria without parasitological confirmation

Inclusions:

• Clinically diagnosed malaria without parasitological confirmation

Malaria unspecified

ICD 11 Code For Malaria unspecified

  1F4Z  Malaria unspecified

Coding Note:

• In cases of mixed malaria code all relevant types separately.