ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesB55.2

B55.2

Toxoplasma chorioretinitis

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

Code Description

ICD-10 B55.2 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 severe complications in immunocompromised individuals, particularly those with HIV/AIDS. 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 vertical transmission from mother to fetus during pregnancy. Diagnosis typically involves clinical examination, serological testing for Toxoplasma antibodies, and imaging studies such as fundus photography or optical coherence tomography (OCT). Treatment usually includes antiparasitic medications such as pyrimethamine and sulfadiazine, often combined with leucovorin to mitigate side effects. 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 from other causes of chorioretinitis
  • 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 serological testing
  • Failure to document immunocompromised status
  • Misdiagnosis due to similar symptoms with other infections
  • Lack of follow-up documentation on treatment response

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 ocular pain.

Billing Considerations

Ensure documentation reflects the severity of the condition and any associated systemic symptoms.

Infectious Disease

Documentation Requirements

Comprehensive patient history, serological test results, and treatment regimens.

Common Clinical Scenarios

Immunocompromised patients with suspected or confirmed Toxoplasma infection.

Billing Considerations

Document any co-infections and the patient's immune status to support coding.

Coding Guidelines

Inclusion Criteria

Use B55.2 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the diagnosis, including any relevant laboratory results and patient history

Exclusion Criteria

Do NOT use B55.2 When
  • Exclude conditions that do not meet the criteria for Toxoplasma chorioretinitis

Related CPT Codes

92002CPT Code

Ophthalmological examination, new patient

Clinical Scenario

Used when a new patient presents with symptoms of chorioretinitis.

Documentation Requirements

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

Specialty Considerations

Ophthalmologists should ensure thorough documentation of visual acuity and fundoscopic findings.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of Toxoplasma infections, improving the accuracy of data collection and reimbursement processes. This specificity aids in better tracking of disease prevalence and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of Toxoplasma infections, improving the accuracy of data collection and reimbursement processes. This specificity aids in better tracking of disease prevalence and treatment outcomes.

Reimbursement & Billing Impact

reimbursement processes. This specificity aids in better tracking of disease prevalence and treatment outcomes.

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, and in severe cases, vision loss. Patients may also experience ocular pain and redness.