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ICD-10 Guide
ICD-10 CodesChapter 15: Pregnancy, childbirth and the puerperiumO15

O15

Billable

Eclampsia

Chapter 15:Pregnancy, childbirth and the puerperium

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

Code Description

ICD-10 O15 is a billable code used to indicate a diagnosis of eclampsia.

Key Diagnostic Point:

Eclampsia is a severe complication of pregnancy characterized by the onset of seizures in a woman with preeclampsia, which is marked by hypertension and proteinuria. The seizures can occur before, during, or after labor and are often a result of cerebral edema or other neurological complications associated with elevated blood pressure. Eclampsia poses significant risks to both the mother and fetus, including potential maternal morbidity and mortality, fetal distress, and preterm delivery. Management typically involves stabilization of the mother, seizure control with medications such as magnesium sulfate, and timely delivery of the fetus, often via emergency cesarean section if the mother’s condition is critical. Close monitoring for neurologic complications, such as stroke or intracranial hemorrhage, is essential. The condition requires a multidisciplinary approach, including obstetricians, neurologists, and anesthesiologists, to ensure optimal outcomes for both mother and child.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Differentiating between preeclampsia and eclampsia
  • Management of concurrent conditions such as HELLP syndrome
  • Emergency delivery protocols and coding for various delivery methods
  • Documentation of seizure activity and neurological assessments

Audit Risk Factors

  • Inadequate documentation of seizure activity
  • Failure to document the timing of seizures in relation to labor
  • Misclassification of preeclampsia versus eclampsia
  • Lack of detail in emergency delivery notes

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed records of maternal vital signs, seizure episodes, and interventions performed during labor and delivery.

Common Clinical Scenarios

A patient with preeclampsia develops seizures during labor, requiring emergency cesarean delivery.

Billing Considerations

Accurate documentation of the severity of hypertension and any neurological assessments performed.

Maternal-Fetal Medicine

Documentation Requirements

Comprehensive records of maternal-fetal monitoring, including fetal heart rate patterns and maternal neurological status.

Common Clinical Scenarios

Management of a high-risk pregnancy where the mother has a history of eclampsia in a previous pregnancy.

Billing Considerations

Consideration of the impact of eclampsia on fetal development and the need for specialized care.

Coding Guidelines

Inclusion Criteria

Use O15 When
  • Coders must adhere to official ICD
  • 10 guidelines, ensuring accurate documentation of the condition's severity, timing, and any associated complications
  • Specific criteria for coding eclampsia include the presence of seizures and the context of preeclampsia

Exclusion Criteria

Do NOT use O15 When
No specific exclusions found.

Related CPT Codes

59510CPT Code

Cesarean delivery

Clinical Scenario

Used when an emergency cesarean is performed due to eclampsia.

Documentation Requirements

Documentation must include indications for cesarean delivery and maternal condition.

Specialty Considerations

Obstetricians must document the urgency and rationale for the procedure.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of eclampsia, improving the ability to capture the severity and complications associated with the condition, which can impact reimbursement and quality metrics.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of eclampsia, improving the ability to capture the severity and complications associated with the condition, which can impact reimbursement and quality metrics.

Reimbursement & Billing Impact

reimbursement and quality metrics.

Resources

Clinical References

  • •
    ACOG Practice Bulletin on Hypertension in Pregnancy

Coding & Billing References

  • •
    ACOG Practice Bulletin on Hypertension in Pregnancy

Frequently Asked Questions

What is the difference between eclampsia and preeclampsia?

Preeclampsia is characterized by high blood pressure and protein in the urine, while eclampsia involves the onset of seizures in a patient with preeclampsia. Eclampsia is a more severe condition requiring immediate medical intervention.