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v1.0.0
ICD-10 Guide
ICD-10 CodesB57.0

B57.0

Toxoplasma chorioretinitis

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 B57.0 is a billable code used to indicate a diagnosis of toxoplasma chorioretinitis.

Key Diagnostic Point:

Toxoplasma chorioretinitis is an ocular manifestation of Toxoplasma gondii infection, a protozoan parasite that can cause significant morbidity, particularly in immunocompromised individuals. The condition is characterized by inflammation of the choroid and retina, leading to symptoms such as blurred vision, floaters, and in severe cases, vision loss. Toxoplasmosis is often acquired through ingestion of oocysts found in contaminated food or water, or through contact with infected cat feces. In immunocompetent individuals, the infection may be asymptomatic or present with mild flu-like symptoms. However, in those with weakened immune systems, such as patients with HIV/AIDS or those undergoing immunosuppressive therapy, the risk of developing chorioretinitis increases significantly. Diagnosis is typically made through clinical examination, supported by imaging studies such as fundus photography or optical coherence tomography, and serological tests for Toxoplasma antibodies. Treatment usually involves the use of pyrimethamine and sulfadiazine, along with leucovorin to mitigate the side effects of pyrimethamine. Early diagnosis and treatment are crucial to prevent irreversible damage to the retina and preserve vision.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiation between acute and chronic cases
  • Need for comprehensive patient history including immunocompromised status
  • Potential for co-infection with other pathogens
  • Variability in clinical presentation

Audit Risk Factors

  • Inadequate documentation of symptoms
  • Failure to document immunocompromised status
  • Misclassification of the severity of the condition
  • Lack of supporting diagnostic tests

Specialty Focus

Medical Specialties

Ophthalmology

Documentation Requirements

Detailed ocular examination findings, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with vision changes, floaters, or eye pain.

Billing Considerations

Ensure documentation reflects the extent of retinal involvement and any associated systemic symptoms.

Infectious Disease

Documentation Requirements

Comprehensive patient history, including risk factors for Toxoplasma infection and serological test results.

Common Clinical Scenarios

Immunocompromised patients with new-onset ocular symptoms.

Billing Considerations

Document any co-infections or complications that may affect treatment.

Coding Guidelines

Inclusion Criteria

Use B57.0 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the patient's clinical status and any relevant laboratory findings
  • Include details on the patient's immune status and any associated conditions

Exclusion Criteria

Do NOT use B57.0 When
No specific exclusions found.

Related CPT Codes

92002CPT Code

Ophthalmological examination, new patient

Clinical Scenario

Used when a new patient presents with symptoms suggestive of chorioretinitis.

Documentation Requirements

Document the patient's history, symptoms, and findings from the examination.

Specialty Considerations

Ophthalmologists should ensure comprehensive documentation of ocular health.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of Toxoplasma-related conditions, improving the accuracy of data collection and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of Toxoplasma-related conditions, improving the accuracy of data collection and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    CDC Toxoplasmosis Information

Coding & Billing References

  • •
    CDC Toxoplasmosis Information

Frequently Asked Questions

What are the common symptoms of Toxoplasma chorioretinitis?

Common symptoms include blurred vision, floaters, eye pain, and in severe cases, vision loss. Patients may also experience systemic symptoms if they are immunocompromised.