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 CodesO33.9

O33.9

Billable

Maternal care for disproportion, unspecified

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

Code Description

ICD-10 O33.9 is a billable code used to indicate a diagnosis of maternal care for disproportion, unspecified.

Key Diagnostic Point:

Maternal care for disproportion, unspecified (O33.9) refers to the clinical scenario where there is a concern regarding the size or shape of the fetus in relation to the maternal pelvis, which may complicate the delivery process. This condition often arises when there is a mismatch between the fetal head size and the pelvic dimensions, commonly known as cephalopelvic disproportion (CPD). CPD can lead to prolonged labor, increased risk of cesarean delivery, and potential complications for both mother and child. The diagnosis of O33.9 is typically made when there are no specific details available regarding the nature of the disproportion, necessitating careful monitoring and planning for delivery. In cases where CPD is suspected, healthcare providers may consider cesarean delivery as a safer alternative to vaginal birth, especially if there are additional risk factors present. Proper documentation of maternal health, fetal growth patterns, and any previous obstetric history is crucial for effective management and coding of this condition.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation of disproportion
  • Need for detailed documentation of maternal and fetal assessments
  • Differentiation between types of disproportion (e.g., CPD vs. other factors)
  • Potential for cesarean delivery planning and associated coding

Audit Risk Factors

  • Inadequate documentation of maternal and fetal assessments
  • Failure to specify type of disproportion when applicable
  • Misuse of O33.9 when more specific codes are available
  • Lack of clear indication for cesarean delivery in documentation

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed records of maternal health, fetal growth, and labor progress are essential. Documentation should include any assessments of pelvic dimensions and fetal size.

Common Clinical Scenarios

Common scenarios include a patient presenting with prolonged labor, a history of previous cesarean deliveries, or concerns about fetal size during routine ultrasounds.

Billing Considerations

Coders should be aware of the implications of CPD on delivery planning and the potential need for interdisciplinary collaboration.

Maternal-Fetal Medicine

Documentation Requirements

High-risk pregnancy documentation must include comprehensive assessments of both maternal and fetal health, including ultrasound findings and growth patterns.

Common Clinical Scenarios

Complex maternal-fetal scenarios may involve multiple risk factors, such as obesity, diabetes, or previous obstetric complications.

Billing Considerations

High-risk coding requires attention to detail and understanding of the implications of maternal conditions on fetal health.

Coding Guidelines

Inclusion Criteria

Use O33.9 When
  • According to official coding guidelines, O33
  • 9 should be used when there is a documented concern regarding disproportion without further specification
  • Coders must ensure that all relevant clinical information is captured to support the diagnosis and any associated procedures

Exclusion Criteria

Do NOT use O33.9 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

59510CPT Code

Cesarean delivery

Clinical Scenario

Used when cesarean delivery is planned due to concerns of disproportion.

Documentation Requirements

Documentation must include the rationale for cesarean delivery and any relevant maternal and fetal assessments.

Specialty Considerations

Obstetricians should ensure that all indications for cesarean delivery are clearly documented.

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 maternal care for disproportion. This specificity aids in better tracking of maternal and fetal outcomes and enhances the ability to analyze healthcare data.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of obstetric conditions, including maternal care for disproportion. This specificity aids in better tracking of maternal and fetal outcomes and enhances the ability to analyze healthcare data.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of obstetric conditions, including maternal care for disproportion. This specificity aids in better tracking of maternal and fetal outcomes and enhances the ability to analyze healthcare data.

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 should be documented to support the use of O33.9?

To support the use of O33.9, documentation should include assessments of fetal size, maternal pelvic dimensions, labor progress, and any discussions regarding delivery options. Clear rationale for cesarean delivery, if planned, should also be included.