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 CodesO13.5

O13.5

Billable

Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating the puerperium

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

Code Description

ICD-10 O13.5 is a billable code used to indicate a diagnosis of gestational [pregnancy-induced] hypertension without significant proteinuria, complicating the puerperium.

Key Diagnostic Point:

Gestational hypertension, also known as pregnancy-induced hypertension, is characterized by elevated blood pressure that develops after 20 weeks of gestation in a previously normotensive woman. This condition is defined by systolic blood pressure readings of 140 mmHg or higher, or diastolic readings of 90 mmHg or higher, without the presence of significant proteinuria. When this condition occurs during the puerperium, which is the period following childbirth, it can complicate recovery and may require careful monitoring and management. The absence of significant proteinuria differentiates this condition from preeclampsia, which is associated with protein in the urine. Management typically involves regular blood pressure monitoring, lifestyle modifications, and in some cases, antihypertensive medications. It is crucial for healthcare providers to monitor the patient's blood pressure closely during the puerperium to prevent potential complications such as cardiovascular issues or progression to more severe hypertensive disorders.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between gestational hypertension and preeclampsia.
  • Monitoring and documenting blood pressure readings accurately.
  • Understanding the implications of hypertension during the puerperium.
  • Recognizing the need for follow-up care and potential medication adjustments.

Audit Risk Factors

  • Inaccurate blood pressure documentation.
  • Failure to document the absence of proteinuria.
  • Inconsistent follow-up care records.
  • Misclassification of gestational hypertension as preeclampsia.

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

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

Common Clinical Scenarios

A patient presenting with elevated blood pressure during a postpartum visit.

Billing Considerations

Ensure that all relevant clinical findings are documented to support the diagnosis.

Maternal-Fetal Medicine

Documentation Requirements

Comprehensive documentation of maternal and fetal health, including any complications.

Common Clinical Scenarios

Management of a high-risk pregnancy with gestational hypertension.

Billing Considerations

Focus on the implications of hypertension on both maternal and fetal outcomes.

Coding Guidelines

Inclusion Criteria

Use O13.5 When
  • According to ICD
  • 10 coding guidelines, gestational hypertension must be documented with specific blood pressure readings and the absence of proteinuria
  • It is essential to follow the guidelines for coding complications during the puerperium

Exclusion Criteria

Do NOT use O13.5 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99213CPT Code

Established patient office visit, Level 3

Clinical Scenario

Used for follow-up visits to monitor blood pressure in postpartum patients.

Documentation Requirements

Document blood pressure readings, symptoms, and treatment plans.

Specialty Considerations

Ensure that the visit is clearly linked to the management of gestational hypertension.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of gestational hypertension, improving the accuracy of diagnoses and treatment tracking. This specificity aids in better patient management and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of gestational hypertension, improving the accuracy of diagnoses and treatment tracking. This specificity aids in better patient management and resource allocation.

Reimbursement & Billing Impact

reimbursement.

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 is the difference between gestational hypertension and preeclampsia?

Gestational hypertension is characterized by elevated blood pressure without significant proteinuria, while preeclampsia involves both high blood pressure and protein in the urine. Accurate documentation of these conditions is crucial for proper coding.