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v1.0.0
ICD-10 Guide
ICD-10 CodesO36.0923

O36.0923

Billable

Maternal care for other rhesus isoimmunization, second trimester (fetus 3)

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

Code Description

ICD-10 O36.0923 is a billable code used to indicate a diagnosis of maternal care for other rhesus isoimmunization, second trimester (fetus 3).

Key Diagnostic Point:

Maternal care for rhesus isoimmunization involves monitoring and managing the health of the mother and fetus when the mother has developed antibodies against the Rh factor, which can lead to hemolytic disease of the fetus and newborn (HDFN). In the second trimester, the fetus is particularly vulnerable to complications such as fetal growth restriction (FGR) and fetal distress due to the effects of maternal antibodies on fetal red blood cells. Care includes regular ultrasounds to assess fetal growth, Doppler studies to evaluate blood flow, and possibly intrauterine transfusions if severe anemia is detected. The management plan may also involve close monitoring of maternal health, including hemoglobin levels and signs of complications. The goal is to ensure the best possible outcomes for both mother and fetus, necessitating a multidisciplinary approach involving obstetricians, maternal-fetal medicine specialists, and pediatricians.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Need for accurate identification of isoimmunization status
  • Monitoring for multiple fetal complications
  • Coordination of care among multiple specialties
  • Documentation of maternal and fetal assessments

Audit Risk Factors

  • Inadequate documentation of maternal antibody status
  • Failure to document fetal monitoring results
  • Lack of clear treatment plans for fetal complications
  • Misclassification of the severity of isoimmunization

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed records of maternal health, fetal assessments, and treatment plans are essential.

Common Clinical Scenarios

Management of a pregnant woman with a history of Rh isoimmunization presenting for routine care.

Billing Considerations

Ensure all maternal and fetal assessments are documented to support the complexity of care.

Maternal-Fetal Medicine

Documentation Requirements

Comprehensive documentation of high-risk factors, including ultrasound findings and interventions.

Common Clinical Scenarios

A patient with Rh isoimmunization requiring close monitoring for fetal anemia.

Billing Considerations

Consider the need for specialized interventions such as intrauterine transfusions.

Coding Guidelines

Inclusion Criteria

Use O36.0923 When
  • Follow the official ICD
  • CM guidelines for obstetric coding, ensuring accurate documentation of maternal and fetal conditions, and adherence to the specific criteria for coding isoimmunization

Exclusion Criteria

Do NOT use O36.0923 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 isoimmunization.

Documentation Requirements

Document indications for ultrasound and findings.

Specialty Considerations

Ensure that the ultrasound is performed by qualified personnel and that results are communicated to the care team.

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, improving the ability to track and manage complex cases like rhesus isoimmunization.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of obstetric conditions, improving the ability to track and manage complex cases like rhesus isoimmunization.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of obstetric conditions, improving the ability to track and manage complex cases like rhesus isoimmunization.

Resources

Clinical References

  • •
    American College of Obstetricians and Gynecologists (ACOG)

Coding & Billing References

  • •
    American College of Obstetricians and Gynecologists (ACOG)

Frequently Asked Questions

What is the significance of coding O36.0923?

Coding O36.0923 is crucial for tracking maternal and fetal health in cases of rhesus isoimmunization, ensuring appropriate care and interventions are documented and reimbursed.