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ICD-10 Guide
ICD-10 CodesO15.02

O15.02

Billable

Eclampsia complicating pregnancy, second trimester

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

Code Description

ICD-10 O15.02 is a billable code used to indicate a diagnosis of eclampsia complicating pregnancy, second trimester.

Key Diagnostic Point:

Eclampsia is a severe complication of pregnancy characterized by the onset of seizures in a woman with preeclampsia, typically occurring after the 20th week of gestation. In the second trimester, eclampsia is less common but can occur, often presenting with generalized tonic-clonic seizures. The condition is associated with significant maternal and fetal morbidity and mortality. Management of eclampsia involves immediate stabilization of the patient, including the administration of magnesium sulfate to prevent further seizures, and careful monitoring of vital signs and fetal well-being. Emergency delivery may be necessary, especially if the mother or fetus is in distress. Neurologic complications can arise, including persistent seizures, stroke, or other long-term neurological deficits. The urgency of treatment and the potential for rapid deterioration in the patient's condition necessitate a high level of clinical vigilance and coordination among healthcare providers.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Differentiating between eclampsia and other seizure disorders
  • Understanding the implications of preeclampsia and gestational hypertension
  • Emergency management protocols and documentation requirements
  • Potential for multiple co-morbid conditions affecting coding

Audit Risk Factors

  • Inadequate documentation of seizure activity and management
  • Failure to document the timing and nature of delivery
  • Misclassification of eclampsia severity
  • Lack of clear linkage between diagnosis and treatment provided

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed records of maternal health, seizure episodes, and treatment protocols are essential.

Common Clinical Scenarios

Management of eclampsia in a laboring patient, post-seizure care, and monitoring for complications.

Billing Considerations

Accurate coding requires understanding the progression from preeclampsia to eclampsia and the associated risks.

Maternal-Fetal Medicine

Documentation Requirements

Comprehensive documentation of high-risk factors, fetal monitoring, and multidisciplinary care plans.

Common Clinical Scenarios

Management of eclampsia in patients with underlying health conditions such as diabetes or chronic hypertension.

Billing Considerations

High-risk coding requires attention to detail regarding maternal and fetal health outcomes.

Coding Guidelines

Inclusion Criteria

Use O15.02 When
  • 10 coding guidelines specify that eclampsia must be coded based on the trimester of pregnancy and the severity of the condition
  • Documentation must support the diagnosis and any associated complications

Exclusion Criteria

Do NOT use O15.02 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

59400CPT Code

Obstetrical delivery, vaginal

Clinical Scenario

Used when a patient with eclampsia requires an emergency vaginal delivery.

Documentation Requirements

Documentation must include the indication for emergency delivery and any complications encountered.

Specialty Considerations

Obstetricians must document the urgency and rationale for delivery in cases of eclampsia.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of obstetric conditions, including eclampsia, which enhances the ability to track and manage maternal health outcomes effectively.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of obstetric conditions, including eclampsia, which enhances the ability to track and manage maternal health outcomes effectively.

Reimbursement & Billing Impact

reimbursement and quality reporting.

Resources

Clinical References

  • •
    ACOG Practice Bulletin on Hypertension in Pregnancy

Coding & Billing References

  • •
    ACOG Practice Bulletin on Hypertension in Pregnancy

Frequently Asked Questions

What are the key symptoms of eclampsia?

Key symptoms of eclampsia include seizures, severe headaches, visual disturbances, and elevated blood pressure. Immediate medical attention is required to manage these symptoms and prevent complications.