2024 ICD-10-CM Diagnosis Code B89

Unspecified parasitic disease

ICD-10-CM Code:
ICD-10 Code for:
Unspecified parasitic disease
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Certain infectious and parasitic diseases
    • Pediculosis, acariasis and other infestations
      • Unspecified parasitic disease

B89 is a billable diagnosis code used to specify a medical diagnosis of unspecified parasitic disease. 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 B89 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:

  • Arthritis due to parasitic infection
  • Arthritis due to parasitic infection
  • Arthritis due to parasitic infection
  • Arthritis of lower limb due to parasitic infection
  • Cardiovascular abnormality due to infective myocarditis
  • Cyst of spinal cord caused by parasite
  • Cyst of spinal subdural space caused by parasite
  • Dilated cardiomyopathy due to infectious disease
  • Dilated cardiomyopathy due to parasitic myocarditis
  • Disease caused by parasite
  • Epilepsy due to parasitic disease
  • Gastric ulcer due to parasitic infection
  • Glomerular disease due to infectious disease
  • Glomerular disease due to parasitic disease
  • Granuloma of spinal cord caused by parasite
  • Granuloma of spinal subdural space caused by parasite
  • Infection causing cyst of central nervous system
  • Infection causing cyst of central nervous system
  • Infection causing cyst of central nervous system
  • Infection causing granuloma of extradural space of spinal cord
  • Infection causing spinal epidural cyst
  • Infection causing spinal subdural cyst
  • Infection of anterior chamber of eye caused by parasite
  • Infection of anterior chamber of eye caused by parasite
  • Infection of bile duct caused by parasite
  • Infection of bursa caused by parasite
  • Infection of intervertebral disc caused by parasite
  • Infection of liver caused by parasite
  • Infection of respiratory tract caused by parasite
  • Infectious cirrhosis
  • Infectious panuveitis
  • Infective ulcer of esophagus
  • Nematode infestation of skin
  • Panuveitis caused by parasite
  • Parasitic chorioretinitis
  • Parasitic chorioretinitis
  • Parasitic choroiditis
  • Parasitic cirrhosis
  • Parasitic cyst of orbit
  • Parasitic endophthalmitis
  • Parasitic eyelid infestation
  • Parasitic infection causing gastritis
  • Parasitic infection causing granuloma of cerebrum
  • Parasitic infection causing myelitis
  • Parasitic infection causing ulcer of esophagus
  • Parasitic infection of central nervous system
  • Parasitic infection of cranial nerve
  • Parasitic infection of lacrimal gland
  • Parasitic infection of lung
  • Parasitic infection of peripheral nerve
  • Parasitic infection of skin
  • Parasitic infection of vertebra
  • Parasitic infestation due to human immunodeficiency virus infection
  • Parasitic infestation of orbit
  • Parasitic keratitis
  • Parasitic meningitis
  • Parasitic myocarditis
  • Parasitic myositis
  • Parasitic pericarditis
  • Parasitic peritonitis
  • Parasitic spinal cord compression
  • Parasitic tenosynovitis
  • Pneumonia due to parasitic infestation
  • Spinal epidural cyst caused by parasite
  • Spinal epidural granuloma caused by parasite
  • Spondyloarthritis caused by parasite
  • Trypanosomiasis with encephalitis

Clinical Classification

Clinical Information

  • Parasitic Endophthalmitis

    infection of the interior of the eye, especially the aqueous and/or vitreous humor, by a parasite.

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 B89 to ICD-9-CM

  • ICD-9-CM Code: 136.9 - Infect/parasite dis NOS
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

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.