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 CodesO36.09

O36.09

Billable

Maternal care for other rhesus isoimmunization

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

Code Description

ICD-10 O36.09 is a billable code used to indicate a diagnosis of maternal care for other rhesus isoimmunization.

Key Diagnostic Point:

Maternal care for other rhesus isoimmunization refers to the management and monitoring of pregnant women who have developed antibodies against the Rh factor, which can lead to hemolytic disease of the fetus and newborn (HDFN). This condition arises when an Rh-negative mother carries an Rh-positive fetus, leading to the mother's immune system producing antibodies that attack the fetal red blood cells. This can result in complications such as fetal growth restriction, fetal distress, and even fetal demise if not properly managed. Care for these patients typically involves close monitoring of fetal well-being through ultrasound assessments, Doppler studies to evaluate blood flow, and possibly intrauterine transfusions if severe anemia is detected. The management plan may also include administering Rh immunoglobulin (RhoGAM) to prevent the formation of antibodies in future pregnancies. The complexity of care increases with the severity of the isoimmunization and the gestational age of the fetus, necessitating a multidisciplinary approach to ensure optimal outcomes for both mother and child.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Need for accurate identification of isoimmunization status
  • Management of potential fetal complications such as anemia and distress
  • Coordination of care among multiple specialties (e.g., obstetrics, maternal-fetal medicine, pediatrics)
  • Documentation of serial ultrasounds and fetal monitoring results

Audit Risk Factors

  • Inadequate documentation of maternal antibody screening results
  • Failure to document fetal monitoring and assessment findings
  • Misclassification of the severity of isoimmunization
  • Lack of clear treatment plans and follow-up care notes

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed documentation of maternal history, antibody screening results, and fetal assessments are essential. Providers should note any interventions performed, such as RhoGAM administration or transfusions.

Common Clinical Scenarios

Common scenarios include routine monitoring of Rh-negative mothers, management of fetal anemia, and planning for delivery in cases of severe isoimmunization.

Billing Considerations

Coders must ensure that all relevant clinical findings and interventions are documented to support the complexity of care provided.

Maternal-Fetal Medicine

Documentation Requirements

High-risk pregnancy documentation must include detailed ultrasound findings, Doppler studies, and any interventions performed to manage fetal distress or growth restriction.

Common Clinical Scenarios

Complex maternal-fetal scenarios may involve multiple consultations, advanced imaging, and potential interventions such as intrauterine transfusions.

Billing Considerations

Considerations for high-risk obstetric coding include the need for precise documentation of the clinical rationale for interventions and the outcomes of fetal monitoring.

Coding Guidelines

Inclusion Criteria

Use O36.09 When
  • According to official obstetric coding guidelines, O36
  • 09 should be used when maternal care is provided for cases of rhesus isoimmunization that do not fall under more specific categories
  • Coders should ensure that the diagnosis is supported by appropriate clinical documentation and that any related procedures are accurately linked

Exclusion Criteria

Do NOT use O36.09 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

76817CPT Code

Ultrasound, fetal, transabdominal, real-time with image documentation

Clinical Scenario

Used for monitoring fetal growth and well-being in cases of rhesus isoimmunization.

Documentation Requirements

Documentation must include indications for the ultrasound and findings.

Specialty Considerations

Obstetricians should ensure that ultrasound findings are clearly linked to the diagnosis of isoimmunization.

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, including those related to rhesus isoimmunization. This specificity aids in better tracking of maternal and fetal outcomes and enhances the ability to analyze data for quality improvement.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of maternal conditions, including those related to rhesus isoimmunization. This specificity aids in better tracking of maternal and fetal outcomes and enhances the ability to analyze data for quality improvement.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of maternal conditions, including those related to rhesus isoimmunization. This specificity aids in better tracking of maternal and fetal outcomes and enhances the ability to analyze data for quality improvement.

Resources

Clinical References

  • •
    ACOG Practice Bulletin on Rh Isoimmunization

Coding & Billing References

  • •
    ACOG Practice Bulletin on Rh Isoimmunization

Frequently Asked Questions

What is the significance of coding O36.09?

Coding O36.09 is significant as it captures the maternal care provided for cases of rhesus isoimmunization that do not involve fetal anemia. Accurate coding ensures appropriate management and monitoring of the mother and fetus, which is crucial for preventing complications.