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ICD-10 Guide
ICD-10 CodesO22.5

O22.5

Billable

Cerebral venous thrombosis in pregnancy

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/08/2025

Code Description

ICD-10 O22.5 is a billable code used to indicate a diagnosis of cerebral venous thrombosis in pregnancy.

Key Diagnostic Point:

Cerebral venous thrombosis (CVT) in pregnancy is a rare but serious condition characterized by the formation of a thrombus in the cerebral venous sinuses, which can lead to increased intracranial pressure and neurological deficits. Pregnant women are at an increased risk for thromboembolic events due to physiological changes such as increased blood volume, hypercoagulability, and venous stasis. Symptoms may include headache, visual disturbances, seizures, and altered mental status. Diagnosis typically involves imaging studies such as MRI or CT scans, and management may include anticoagulation therapy to prevent further clot formation and to mitigate the risk of complications. The condition requires careful monitoring and may necessitate multidisciplinary care involving obstetricians, neurologists, and hematologists to ensure optimal outcomes for both the mother and the fetus.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Differentiating between CVT and other neurological conditions in pregnancy.
  • Understanding the implications of anticoagulation therapy during pregnancy.
  • Navigating the documentation requirements for high-risk obstetric cases.
  • Recognizing the potential for complications that may arise from CVT.

Audit Risk Factors

  • Inadequate documentation of symptoms and clinical findings.
  • Failure to document the rationale for anticoagulation therapy.
  • Misclassification of CVT as a less severe condition.
  • Lack of follow-up documentation regarding the patient's progress.

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed documentation of maternal symptoms, diagnostic imaging results, and treatment plans.

Common Clinical Scenarios

Pregnant patients presenting with severe headaches or neurological deficits.

Billing Considerations

Consideration of the effects of anticoagulation on both maternal and fetal health.

Maternal-Fetal Medicine

Documentation Requirements

Comprehensive documentation of maternal-fetal interactions and high-risk assessments.

Common Clinical Scenarios

Management of pregnant patients with a history of thromboembolic events.

Billing Considerations

Close monitoring of fetal well-being during anticoagulation therapy.

Coding Guidelines

Inclusion Criteria

Use O22.5 When
  • Follow the official ICD
  • CM coding guidelines for obstetric conditions, ensuring that all relevant clinical information is documented and that the code is used in conjunction with any related conditions

Exclusion Criteria

Do NOT use O22.5 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99223CPT Code

Initial hospital care, typically for patients with complex medical conditions.

Clinical Scenario

Used when a pregnant patient with CVT is admitted for management.

Documentation Requirements

Detailed history and examination findings, including neurological assessments.

Specialty Considerations

Obstetricians should collaborate with neurologists for comprehensive care.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

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

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    American College of Obstetricians and Gynecologists (ACOG)

Coding & Billing References

  • •
    American College of Obstetricians and Gynecologists (ACOG)

Frequently Asked Questions

What are the common symptoms of cerebral venous thrombosis in pregnancy?

Common symptoms include severe headaches, visual disturbances, seizures, and altered mental status. Prompt recognition and treatment are crucial.