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ICD-10 Guide
ICD-10 CodesQ51.9

Q51.9

Billable

Congenital malformation of uterus and cervix, unspecified

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

Code Description

ICD-10 Q51.9 is a billable code used to indicate a diagnosis of congenital malformation of uterus and cervix, unspecified.

Key Diagnostic Point:

Congenital malformations of the uterus and cervix encompass a variety of structural anomalies that can affect reproductive health. These malformations may include agenesis, hypoplasia, or abnormal shapes of the uterus, as well as cervical malformations such as agenesis or duplication. Such conditions can lead to complications in pregnancy, including infertility, miscarriage, or preterm labor. In pediatric patients, these malformations may present with ambiguous genitalia or other associated anomalies, necessitating a thorough evaluation. The diagnosis often involves imaging studies such as ultrasound or MRI to assess the anatomy of the reproductive tract. The unspecified nature of this code indicates that while a malformation is present, the specific type has not been determined or documented. Accurate coding is essential for appropriate management and treatment planning, as well as for understanding the potential genetic implications of these conditions.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and severity of malformations
  • Need for detailed imaging and documentation
  • Potential for associated anomalies requiring additional codes
  • Differentiation from acquired conditions

Audit Risk Factors

  • Inadequate documentation of the specific malformation
  • Failure to capture associated congenital anomalies
  • Misuse of unspecified codes leading to potential denials
  • Lack of clarity in imaging reports

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation should include detailed descriptions of the malformation, associated symptoms, and any interventions performed. Growth and developmental assessments may also be relevant.

Common Clinical Scenarios

Common scenarios include evaluation of ambiguous genitalia, management of cryptorchidism, and assessment of hypospadias in newborns.

Billing Considerations

Coders should be aware of the developmental implications of congenital malformations and the need for multidisciplinary care.

Genetics

Documentation Requirements

Genetic documentation should include family history, genetic testing results, and any syndromic associations with the malformation.

Common Clinical Scenarios

Scenarios may involve genetic counseling for families with a history of congenital malformations or chromosomal abnormalities.

Billing Considerations

Consideration of genetic syndromes that may present with uterine malformations is crucial for accurate coding.

Coding Guidelines

Inclusion Criteria

Use Q51.9 When
  • Official coding guidelines for congenital conditions emphasize the importance of specificity in documentation
  • Coders should ensure that all relevant details are captured to support the diagnosis and any associated conditions

Exclusion Criteria

Do NOT use Q51.9 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

58150CPT Code

Hysterectomy, abdominal, total

Clinical Scenario

Used in cases where congenital malformations lead to significant reproductive issues.

Documentation Requirements

Documentation must include indications for surgery and any associated conditions.

Specialty Considerations

Pediatric considerations may differ from adult cases, requiring careful evaluation.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding congenital malformations, improving the accuracy of data collection and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding congenital malformations, improving the accuracy of data collection and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

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 I do if the specific type of malformation is not documented?

If the specific type of malformation is not documented, use the unspecified code Q51.9, but ensure to communicate with the healthcare provider for clarification and to encourage more detailed documentation in the future.