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v1.0.0
ICD-10 Guide
ICD-10 CodesQ42.1

Q42.1

Billable

Congenital absence, atresia and stenosis of rectum without fistula

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

Code Description

ICD-10 Q42.1 is a billable code used to indicate a diagnosis of congenital absence, atresia and stenosis of rectum without fistula.

Key Diagnostic Point:

Congenital absence, atresia, and stenosis of the rectum without fistula is a rare malformation of the digestive system that occurs during fetal development. This condition results in the rectum being either absent or obstructed, leading to significant challenges in bowel function. Infants with this condition may present with symptoms such as abdominal distension, failure to pass meconium, and signs of intestinal obstruction. Diagnosis is typically made through physical examination and imaging studies, such as abdominal X-rays or ultrasound. Surgical intervention is often required to correct the malformation, which may involve creating a new rectal passage or performing colostomy. The condition can be associated with other congenital anomalies, particularly those affecting the gastrointestinal tract, such as esophageal atresia, Hirschsprung disease, and imperforate anus. Early diagnosis and management are crucial to prevent complications and ensure optimal outcomes for affected infants.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between various types of congenital malformations of the rectum.
  • Understanding associated congenital anomalies that may complicate coding.
  • Navigating the nuances of surgical interventions and their coding.
  • Ensuring accurate documentation of clinical findings and surgical procedures.

Audit Risk Factors

  • Inadequate documentation of clinical findings.
  • Failure to capture associated congenital anomalies.
  • Incorrect coding of surgical procedures related to the condition.
  • Misinterpretation of the absence of fistula in documentation.

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation must include detailed birth history, physical examination findings, and any associated anomalies.

Common Clinical Scenarios

Common scenarios include newborns presenting with failure to pass meconium and abdominal distension, requiring urgent evaluation.

Billing Considerations

Coders should be aware of the need for multidisciplinary documentation, including surgical notes and follow-up care.

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 conditions is essential for accurate coding.

Coding Guidelines

Inclusion Criteria

Use Q42.1 When
  • Coders should adhere to the official ICD
  • CM coding guidelines, ensuring accurate assignment based on clinical documentation, and should be familiar with the specific criteria for congenital conditions

Exclusion Criteria

Do NOT use Q42.1 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

44180CPT Code

Colostomy, temporary or permanent

Clinical Scenario

Used in cases where surgical intervention is required for rectal atresia.

Documentation Requirements

Surgical notes detailing the procedure and indications.

Specialty Considerations

Pediatric surgeons should provide comprehensive documentation of the surgical approach.

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. Coders must be familiar with the nuances of the new coding system to ensure compliance and optimal billing.

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. Coders must be familiar with the nuances of the new coding system to ensure compliance and optimal billing.

Reimbursement & Billing Impact

reimbursement processes. Coders must be familiar with the nuances of the new coding system to ensure compliance and optimal billing.

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 associated conditions with Q42.1?

Common associated conditions include esophageal atresia, Hirschsprung disease, and other gastrointestinal malformations. Coders should be aware of these associations to ensure comprehensive coding.