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 CodesO26.51

O26.51

Billable

Maternal hypotension syndrome, first trimester

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

Code Description

ICD-10 O26.51 is a billable code used to indicate a diagnosis of maternal hypotension syndrome, first trimester.

Key Diagnostic Point:

Maternal hypotension syndrome in the first trimester is characterized by a significant drop in blood pressure that can lead to inadequate perfusion of vital organs. This condition may arise due to various factors, including hormonal changes, increased blood volume, and vascular resistance alterations during early pregnancy. Clinically, it can manifest as dizziness, fainting, and fatigue, which may complicate the management of pregnancy. Maternal hypotension can be particularly concerning in patients with pre-existing conditions such as renal, cardiac, or respiratory issues, as these patients may already have compromised hemodynamics. Careful monitoring and management are essential to mitigate risks to both the mother and fetus. Treatment may involve lifestyle modifications, hydration, and in some cases, medication adjustments to stabilize blood pressure. The first trimester is a critical period for fetal development, making the management of maternal hypotension crucial to ensure optimal outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between primary hypotension and secondary causes related to pregnancy.
  • Identifying co-existing conditions such as renal or cardiac issues that may complicate management.
  • Understanding the implications of hypotension on fetal health and development.
  • Navigating documentation requirements for high-risk pregnancies.

Audit Risk Factors

  • Inadequate documentation of maternal symptoms and their impact on pregnancy.
  • Failure to document co-existing conditions that may influence treatment.
  • Misclassification of hypotension as a primary diagnosis without supporting evidence.
  • Lack of follow-up documentation regarding management strategies.

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed records of maternal blood pressure readings, symptoms, and treatment plans.

Common Clinical Scenarios

Management of hypotension in patients with a history of cardiac issues or those experiencing severe nausea and vomiting.

Billing Considerations

Consideration of lifestyle factors, hydration status, and medication use that may affect blood pressure.

Maternal-Fetal Medicine

Documentation Requirements

Comprehensive assessment of maternal and fetal health, including ultrasound findings and fetal monitoring.

Common Clinical Scenarios

High-risk pregnancies where maternal hypotension may affect fetal growth and development.

Billing Considerations

Close monitoring of both maternal and fetal well-being, with adjustments to care plans as necessary.

Coding Guidelines

Inclusion Criteria

Use O26.51 When
  • Follow the official ICD
  • CM guidelines for obstetric coding, ensuring that the code reflects the trimester of pregnancy and any associated complications
  • Document all relevant clinical findings and management strategies

Exclusion Criteria

Do NOT use O26.51 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

59400CPT Code

Obstetrical care including antepartum care, delivery, and postpartum care

Clinical Scenario

Used for comprehensive care of a patient with maternal hypotension syndrome.

Documentation Requirements

Complete records of all prenatal visits, including blood pressure monitoring and management strategies.

Specialty Considerations

Obstetricians should ensure thorough documentation of maternal health status and any interventions.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of maternal conditions, improving the accuracy of data collection and reimbursement processes. O26.51 provides a clear distinction for maternal hypotension in the first trimester, enhancing clinical understanding and management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of maternal conditions, improving the accuracy of data collection and reimbursement processes. O26.51 provides a clear distinction for maternal hypotension in the first trimester, enhancing clinical understanding and management.

Reimbursement & Billing Impact

reimbursement processes. O26.51 provides a clear distinction for maternal hypotension in the first trimester, enhancing clinical understanding and management.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What are the common symptoms of maternal hypotension syndrome?

Common symptoms include dizziness, fainting, fatigue, and lightheadedness. These symptoms can vary in severity and may require careful monitoring and management.