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v1.0.0
ICD-10 Guide
ICD-10 CodesQ51.21

Q51.21

Billable

Complete doubling of uterus

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 Q51.21 is a billable code used to indicate a diagnosis of complete doubling of uterus.

Key Diagnostic Point:

Complete doubling of the uterus, also known as uterine didelphys, is a congenital malformation characterized by the presence of two distinct uterine cavities and two cervices, resulting from the failure of the Müllerian ducts to fuse during embryonic development. This condition can lead to various reproductive challenges, including complications during pregnancy, such as preterm labor, miscarriage, and abnormal fetal positioning. Patients may also experience menstrual irregularities and increased risk of ectopic pregnancies. Diagnosis is typically made through imaging studies such as ultrasound or MRI, which can visualize the anatomical differences. Management may involve careful monitoring during pregnancy and potential surgical intervention if associated complications arise. Understanding this condition is crucial for pediatricians and gynecologists, as it can impact future reproductive health and requires a multidisciplinary approach for optimal patient outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and associated symptoms
  • Need for imaging studies for accurate diagnosis
  • Potential for coexisting congenital anomalies
  • Differentiation from other uterine malformations

Audit Risk Factors

  • Inadequate documentation of imaging results
  • Failure to document associated conditions
  • Misclassification of uterine anomalies
  • Lack of clarity in reproductive history

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation should include detailed family history, prenatal exposure, and any associated congenital anomalies. Growth and development assessments are also critical.

Common Clinical Scenarios

Common scenarios include referrals for abnormal ultrasound findings, management of menstrual irregularities, and counseling regarding reproductive health.

Billing Considerations

Pediatricians should be aware of the psychosocial impact on patients and families, as well as the importance of multidisciplinary care.

Genetics

Documentation Requirements

Genetic documentation should include family history of congenital anomalies, genetic testing results, and any syndromic associations.

Common Clinical Scenarios

Genetic counseling for families with a history of uterine malformations or other congenital conditions, and discussions regarding recurrence risks.

Billing Considerations

Geneticists should consider the potential for chromosomal abnormalities and syndromic presentations that may accompany uterine malformations.

Coding Guidelines

Inclusion Criteria

Use Q51.21 When
  • Follow official ICD
  • CM guidelines for coding congenital malformations, ensuring accurate documentation of the condition and any associated anomalies
  • Use additional codes as necessary to capture the full clinical picture

Exclusion Criteria

Do NOT use Q51.21 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

58120CPT Code

Hysteroscopy, diagnostic

Clinical Scenario

Used to evaluate uterine anomalies in patients with suspected congenital malformations.

Documentation Requirements

Document indications for the procedure and findings.

Specialty Considerations

Gynecologists should ensure that the procedure is justified based on clinical findings.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of congenital malformations, improving the accuracy of data collection and reimbursement processes. Q51.21 provides a clear distinction from other uterine anomalies, facilitating better patient management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital malformations, improving the accuracy of data collection and reimbursement processes. Q51.21 provides a clear distinction from other uterine anomalies, facilitating better patient management.

Reimbursement & Billing Impact

reimbursement processes. Q51.21 provides a clear distinction from other uterine anomalies, facilitating better patient management.

Resources

Clinical References

  • •
    American College of Obstetricians and Gynecologists (ACOG)
  • •
    National Organization for Rare Disorders (NORD)

Coding & Billing References

  • •
    American College of Obstetricians and Gynecologists (ACOG)
  • •
    National Organization for Rare Disorders (NORD)

Frequently Asked Questions

What are the common complications associated with complete doubling of the uterus?

Common complications include increased risk of miscarriage, preterm labor, and abnormal fetal positioning. Patients may also experience menstrual irregularities and require careful monitoring during pregnancy.