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v1.0.0
ICD-10 Guide
ICD-10 CodesQ42.0

Q42.0

Billable

Congenital absence, atresia and stenosis of rectum with fistula

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

Code Description

ICD-10 Q42.0 is a billable code used to indicate a diagnosis of congenital absence, atresia and stenosis of rectum with fistula.

Key Diagnostic Point:

Congenital absence, atresia, and stenosis of the rectum with fistula is a serious congenital malformation of the digestive system characterized by the incomplete development of the rectum, leading to an absence or blockage of the rectal passage. This condition often presents with a fistula, which is an abnormal connection between the rectum and another organ, typically the urinary tract or vagina. Infants with this condition may exhibit signs of bowel obstruction, abdominal distension, and failure to pass meconium within the first 24 hours of life. Diagnosis is typically confirmed through imaging studies and physical examination. Surgical intervention is often required to correct the malformation and establish normal bowel function. This condition is part of a broader category of congenital malformations affecting the digestive system, which includes esophageal atresia, Hirschsprung disease, and imperforate anus, each presenting unique challenges in diagnosis and management.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Variability in presentation and severity of the condition
  • Need for detailed surgical documentation
  • Potential for associated anomalies requiring additional codes
  • Complexity in differentiating from similar conditions

Audit Risk Factors

  • Inadequate documentation of associated anomalies
  • Failure to specify the type of fistula present
  • Misclassification of the condition severity
  • Inaccurate coding of surgical procedures performed

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation must include detailed birth history, physical examination findings, and any imaging studies performed.

Common Clinical Scenarios

Common scenarios include newborns presenting with failure to pass meconium, abdominal distension, and signs of bowel obstruction.

Billing Considerations

Coders should be aware of the need for accurate coding of associated congenital anomalies and the potential for multiple surgical interventions.

Genetics

Documentation Requirements

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

Common Clinical Scenarios

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

Billing Considerations

Consideration of chromosomal abnormalities that may be associated with congenital malformations is essential for accurate coding.

Coding Guidelines

Inclusion Criteria

Use Q42.0 When
  • According to ICD
  • 10 coding guidelines, congenital conditions should be coded based on the specific type and severity of the malformation
  • Documentation must support the diagnosis and any associated conditions or procedures

Exclusion Criteria

Do NOT use Q42.0 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

44160CPT Code

Surgical repair of rectal atresia

Clinical Scenario

Used during surgical intervention for rectal atresia with fistula.

Documentation Requirements

Operative report detailing the procedure and findings.

Specialty Considerations

Pediatric surgical documentation must include age-specific considerations.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the accuracy of data collection and reimbursement processes. This specificity aids in better tracking of congenital anomalies and their outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the accuracy of data collection and reimbursement processes. This specificity aids in better tracking of congenital anomalies and their outcomes.

Reimbursement & Billing Impact

reimbursement processes. This specificity aids in better tracking of congenital anomalies and their outcomes.

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 are the common surgical interventions for Q42.0?

Common surgical interventions for Q42.0 include colostomy, rectal pull-through procedures, and repair of associated fistulas. The choice of procedure depends on the specific anatomy and associated anomalies present.