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ICD-10 Guide
ICD-10 CodesO22.53

O22.53

Billable

Cerebral venous thrombosis in pregnancy, third trimester

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

Code Description

ICD-10 O22.53 is a billable code used to indicate a diagnosis of cerebral venous thrombosis in pregnancy, third trimester.

Key Diagnostic Point:

Cerebral venous thrombosis (CVT) is a rare but serious condition that can occur during pregnancy, particularly in the third trimester. It involves the formation of a thrombus (blood clot) in the cerebral veins, which can lead to increased intracranial pressure, hemorrhage, and neurological deficits. The risk factors for CVT in pregnancy include dehydration, prolonged immobility, and hypercoagulable states often associated with pregnancy. Symptoms may include headache, visual disturbances, seizures, and altered mental status. Diagnosis typically involves imaging studies such as MRI or CT scans. Management may include anticoagulation therapy, which must be carefully balanced against the risks of bleeding, especially during labor and delivery. Close monitoring and multidisciplinary care are essential for optimal outcomes for both the mother and the fetus.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Requires understanding of pregnancy-related hypercoagulable states.
  • Involves knowledge of anticoagulation management during pregnancy.
  • Differentiation from other neurological conditions is necessary.
  • Documentation must reflect the severity and management of the condition.

Audit Risk Factors

  • Inadequate documentation of symptoms and clinical findings.
  • Failure to document anticoagulation therapy and its management.
  • Misclassification of the condition as a more common diagnosis.
  • Lack of follow-up documentation post-diagnosis.

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed clinical notes on symptoms, imaging results, and treatment plans.

Common Clinical Scenarios

Management of CVT in pregnant patients presenting with headaches or neurological symptoms.

Billing Considerations

Consideration of the risks of anticoagulation during labor and delivery.

Maternal-Fetal Medicine

Documentation Requirements

Comprehensive risk assessment and management plans for high-risk pregnancies.

Common Clinical Scenarios

Monitoring and managing patients with known thrombophilia or previous thrombotic events.

Billing Considerations

Coordination with neurology for multidisciplinary care.

Coding Guidelines

Inclusion Criteria

Use O22.53 When
  • Follow the official ICD
  • CM coding guidelines for obstetric conditions, ensuring that the diagnosis is supported by clinical documentation and that any associated conditions are also coded appropriately

Exclusion Criteria

Do NOT use O22.53 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99223CPT Code

Initial hospital care, typically 70 minutes or more

Clinical Scenario

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

Documentation Requirements

Detailed history, examination, and medical decision-making.

Specialty Considerations

Obstetricians should document the complexity of care provided.

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) Guidelines

Coding & Billing References

  • •
    American College of Obstetricians and Gynecologists (ACOG) Guidelines

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.