2024 ICD-10-CM Diagnosis Code B65.9

Schistosomiasis, unspecified

ICD-10-CM Code:
ICD-10 Code for:
Schistosomiasis, unspecified
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Certain infectious and parasitic diseases
    • Helminthiases
      • Schistosomiasis [bilharziasis]

B65.9 is a billable diagnosis code used to specify a medical diagnosis of schistosomiasis, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Unspecified diagnosis codes like B65.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Acute schistosomiasis
  • Associated pulmonary arterial hypertension
  • Bladder disorder caused by Schistosoma
  • Bladder disorder caused by Schistosoma
  • Bleeding esophageal varices
  • Cardiopulmonary schistosomiasis
  • Cystitis with bilharziasis
  • Disease due to Schistosomatidae
  • Encephalitis caused by Schistosoma
  • Esophageal varices associated with another disorder
  • Esophageal varices with bleeding due to schistosomiasis
  • Glomerular disease due to infectious disease
  • Glomerular disease due to parasitic disease
  • Glomerular disorder due to infection caused by Schistosoma
  • Granuloma of brain caused by Schistosoma
  • Hepatic granuloma
  • Hepatic schistosomal granuloma
  • Hepatic schistosomiasis
  • Hepatic schistosomiasis
  • Hepatic schistosomiasis
  • Hepatic schistosomiasis
  • Hepatic schistosomiasis
  • Hepatosplenic schistosomiasis
  • Infection by Schistosoma
  • Infection of lower respiratory tract and mediastinum
  • Infection of spleen
  • Infection of spleen
  • Infection of spleen
  • Myelitis caused by Schistosoma
  • Neuroschistosomiasis
  • Nodule of liver
  • Parasitic infection causing myelitis
  • Periportal fibrosis
  • Periurethral abscess
  • Pneumonia due to parasitic infestation
  • Pneumonia due to Schistosoma mansoni
  • Pulmonary arterial hypertension associated with schistosomiasis
  • Pulmonary schistosomiasis
  • Pulmonary schistosomiasis
  • Pulmonary schistosomiasis
  • Schistosoma encephalomyelitis
  • Schistosoma mansoni infection
  • Schistosomal granuloma of central nervous system
  • Schistosomal hepatomegaly
  • Schistosomal hepatomegaly
  • Schistosomal periurethral abscess
  • Schistosomal pigment deposition
  • Schistosomal splenomegaly
  • Schistosomal splenomegaly
  • Schistosomal urethral fistula
  • Splenic schistosomal giant cell lymphoma
  • Splenitis
  • Symmer's pipe-stem fibrosis
  • Urinary schistosomiasis
  • Urinary schistosomiasis
  • Urinary schistosomiasis
  • Urinary schistosomiasis

Clinical Classification

Clinical Information

  • Neuroschistosomiasis

    schistosomiasis of the brain, spinal cord, or meninges caused by infections with trematodes of the genus schistosoma (primarily schistosoma japonicum; schistosoma mansoni; and schistosoma haematobium in humans). s. japonicum infections of the nervous system may cause an acute meningoencephalitis or a chronic encephalopathy. s. mansoni and s. haematobium nervous system infections are associated with acute transverse myelitis involving the lower portions of the spinal cord. (from joynt, clinical neurology, 1998, ch27, pp61-2)
  • Schistosomiasis

    infection with flukes (trematodes) of the genus schistosoma. three species produce the most frequent clinical diseases: schistosoma haematobium (endemic in africa and the middle east), schistosoma mansoni (in egypt, northern and southern africa, some west indies islands, northern 2/3 of south america), and schistosoma japonicum (in japan, china, the philippines, celebes, thailand, laos). s. mansoni is often seen in puerto ricans living in the united states.
  • Schistosomiasis haematobia

    a human disease caused by the infection of parasitic worms schistosoma haematobium. it is endemic in africa and parts of the middle east. tissue damages most often occur in the urinary tract, specifically the urinary bladder.
  • Schistosomiasis japonica

    schistosomiasis caused by schistosoma japonicum. it is endemic in the asia, eastern and affects the bowel, liver, and spleen.
  • Schistosomiasis mansoni

    schistosomiasis caused by schistosoma mansoni. it is endemic in africa, the middle east, south america, and the caribbean and affects mainly the bowel, spleen, and liver.
  • Schistosoma Mansoni Infection

    an infection that is caused by schistosoma mansoni.

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert B65.9 to ICD-9-CM

  • ICD-9-CM Code: 120.9 - Schistosomiasis NOS

Patient Education

Parasitic Diseases

Parasites are living things that use other living things - like your body - for food and a place to live. You can get them from contaminated food or water, a bug bite, or sexual contact. Some parasitic diseases are easily treated and some are not.

Parasites range in size from tiny, one-celled organisms called protozoa to worms that can be seen with the naked eye. Some parasitic diseases occur in the United States. Contaminated water supplies can lead to Giardia infections. Cats can transmit toxoplasmosis, which is dangerous for pregnant women. Others, like malaria, are common in other parts of the world.

If you are traveling, it's important to drink only water you know is safe. Prevention is especially important. There are no vaccines for parasitic diseases. Some medicines are available to treat parasitic infections.

[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.


[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.