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ICD-10 Guide
ICD-10 CodesO31.11

O31.11

Billable

Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester

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

Code Description

ICD-10 O31.11 is a billable code used to indicate a diagnosis of continuing pregnancy after spontaneous abortion of one fetus or more, first trimester.

Key Diagnostic Point:

O31.11 refers to a clinical scenario where a pregnancy continues after a spontaneous abortion has occurred involving one or more fetuses during the first trimester. This condition is particularly relevant in cases of multiple gestations, where the loss of one or more fetuses can lead to various complications. In such cases, the remaining fetus or fetuses may be at risk for conditions such as twin-to-twin transfusion syndrome (TTTS), a serious condition that can occur in monochorionic twins, where blood flow is imbalanced between the twins. This imbalance can lead to significant health issues for both the donor and recipient twins. The management of pregnancies under this code requires careful monitoring and may involve specialized interventions to ensure the health of the remaining fetus or fetuses. Documentation must reflect the complexity of the situation, including any interventions or monitoring strategies employed to manage the ongoing pregnancy effectively.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Multiple gestation management complexities
  • Potential for twin-to-twin transfusion syndrome
  • Need for specialized monitoring and interventions
  • Variability in clinical outcomes based on gestational age

Audit Risk Factors

  • Inadequate documentation of spontaneous abortion details
  • Failure to document monitoring for TTTS
  • Misclassification of gestational age
  • Inconsistent coding of multiple gestation status

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed documentation of the spontaneous abortion event, ongoing pregnancy status, and any complications.

Common Clinical Scenarios

Management of a patient with a history of spontaneous abortion in a multiple gestation pregnancy.

Billing Considerations

Consideration of the psychological impact of loss on the patient and the need for supportive care.

Maternal-Fetal Medicine

Documentation Requirements

Comprehensive documentation of high-risk factors, including monitoring for TTTS and other complications.

Common Clinical Scenarios

Management of a monochorionic twin pregnancy following the loss of one twin.

Billing Considerations

Involvement of multidisciplinary teams for optimal management of complex cases.

Coding Guidelines

Inclusion Criteria

Use O31.11 When
  • According to ICD
  • 10 coding guidelines, accurate coding requires documentation of the spontaneous abortion event, the ongoing pregnancy status, and any complications that arise
  • Coders must ensure that the gestational age is correctly documented and that any interventions are clearly noted

Exclusion Criteria

Do NOT use O31.11 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

76815CPT Code

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

Clinical Scenario

Used for monitoring fetal growth and well-being in pregnancies with complications.

Documentation Requirements

Documentation of indications for ultrasound and findings.

Specialty Considerations

Obstetricians should ensure that the ultrasound report includes details relevant to the ongoing pregnancy status.

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 O31.11. This specificity aids in better tracking of outcomes and complications associated with multiple gestations and spontaneous abortions.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of obstetric conditions, including O31.11. This specificity aids in better tracking of outcomes and complications associated with multiple gestations and spontaneous abortions.

Reimbursement & Billing Impact

reimbursement and quality reporting.

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 documentation is required for coding O31.11?

Documentation must include details of the spontaneous abortion event, the current status of the pregnancy, any complications such as TTTS, and the gestational age of the remaining fetus or fetuses.