2024 ICD-10-CM Diagnosis Code B58.9

Toxoplasmosis, unspecified

ICD-10-CM Code:
B58.9
ICD-10 Code for:
Toxoplasmosis, unspecified
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Certain infectious and parasitic diseases
    (A00–B99)
    • Protozoal diseases
      (B50-B64)
      • Toxoplasmosis
        (B58)

B58.9 is a billable diagnosis code used to specify a medical diagnosis of toxoplasmosis, 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 B58.9 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:

  • Coccidiosis co-occurrent with human immunodeficiency virus infection
  • Infection caused by Coccidia co-occurrent with acquired immunodeficiency syndrome
  • Infection caused by Toxoplasma
  • Infection caused by Toxoplasma gondii co-occurrent with acquired immunodeficiency syndrome
  • Infectious mononucleosis caused by Toxoplasma
  • Multisystemic disseminated toxoplasmosis
  • Toxoplasmosis
  • Toxoplasmosis of multiple sites

Clinical Classification

Clinical Information

  • Toxoplasmosis

    the acquired form of infection by toxoplasma gondii in animals and man.
  • Toxoplasmosis, Animal

    acquired infection of non-human animals by organisms of the genus toxoplasma.
  • Toxoplasmosis, Cerebral

    infections of the brain caused by the protozoan toxoplasma gondii that primarily arise in individuals with immunologic deficiency syndromes (see also aids-related opportunistic infections). the infection may involve the brain diffusely or form discrete abscesses. clinical manifestations include seizures, altered mentation, headache, focal neurologic deficits, and intracranial hypertension. (from joynt, clinical neurology, 1998, ch27, pp41-3)
  • Toxoplasmosis, Congenital

    prenatal protozoal infection with toxoplasma gondii which is associated with injury to the developing fetal nervous system. the severity of this condition is related to the stage of pregnancy during which the infection occurs; first trimester infections are associated with a greater degree of neurologic dysfunction. clinical features include hydrocephalus; microcephaly; deafness; cerebral calcifications; seizures; and psychomotor retardation. signs of a systemic infection may also be present at birth, including fever, rash, and hepatosplenomegaly. (from adams et al., principles of neurology, 6th ed, p735)
  • Toxoplasmosis, Ocular

    infection caused by the protozoan parasite toxoplasma in which there is extensive connective tissue proliferation, the retina surrounding the lesions remains normal, and the ocular media remain clear. chorioretinitis may be associated with all forms of toxoplasmosis, but is usually a late sequel of congenital toxoplasmosis. the severe ocular lesions in infants may lead to blindness.
  • Toxoplasma

    a genus of protozoa parasitic to birds and mammals. t. gondii is one of the most common infectious pathogenic animal parasites of man.
  • Adult Acquired Toxoplasmosis

    toxoplasmosis acquired in adulthood.
  • Aicardi-Goutieres Syndrome 1|AGS1|Cree Encephalitis|Encephalopathy, Familial Infantile, with Intracranial Calcification and Chronic Cerebrospinal Fluid Lymphocytosis|Pseudotoxoplasmosis Syndrome

    a heritable condition, caused by mutation(s) in the trex1 gene, encoding three-prime repair exonuclease 1. clinical features and onset may vary significantly, but is characterized in its most severe form by cerebral atrophy, leukodystrophy, intracranial calcifications, chronic cerebrospinal fluid (csf) lymphocytosis, and increased concentrations of csf alpha-interferon.
  • Congenital Toxoplasmosis

    toxoplasma infection that is present from birth.
  • Cordonnier Grade 2 Parasitic Complication, Toxoplasmosis Infection without Organ Involvement|Cordonnier Grade 2 Parasitic Complication|Grade 2 Toxoplasmosis Infection without Organ Involvement

    any toxoplasmosis infection without organ involvement.
  • Cordonnier Grade 3 Parasitic Complication, Central Nervous System or Other Organ Toxoplasmosis|Grade 3 CNS or Other Organ Toxoplasmosis

    any toxoplasmosis infection with central nervous system involvement or other organ involvement.
  • Nephrotic Syndrome - Toxoplasmosis Associated|Toxoplasmosis Associated Nephrotic Syndrome

    nephrotic syndrome associated with a toxoplasmosis infection.
  • TORCH Antibody Measurement|Toxoplasmosis, Other Infections, Rubella, Cytomegalovirus, and Herpes Simplex Virus (TORCH) Antibody Panel Measurement

    a group of blood tests used to detect antibodies to toxoplasma gondii, rubella, cytomegalovirus, and herpes simplex virus to rule out congenital infections. a group of other infections may be tested as well, including varicella-zoster virus, hepatitis b virus, human immunodeficiency virus, parvovirus b19, and syphilis.
  • TORCH Syndrome|TORCH Infection|Toxoplasmosis, Other Infections, Rubella, Cytomegalovirus, and Herpes Simplex Virus (TORCH) Syndrome

    a syndrome that results from a group of infections that affect the fetus or the newborn. the group of infections includes toxoplasma gondii, rubella, cytomegalovirus, herpes simplex virus, and other infections. the other infections include varicella-zoster virus, hepatitis b virus, human immunodeficiency virus, parvovirus b19, and syphilis. signs and symptoms include fever, feeding difficulties, petechial rash, jaundice, hepatosplenomegaly, chorioretinitis, and microcephaly.
  • Toxoplasmosis

    a parasitic disease contracted by the ingestion or fetal transmission of toxoplasma gondii.

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 B58.9 to ICD-9-CM

  • ICD-9-CM Code: 130.9 - Toxoplasmosis NOS

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.

Footnotes

[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.