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v1.0.0
ICD-10 Guide
ICD-10 CodesQ31.9

Q31.9

Billable

Congenital malformation of larynx, unspecified

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

Code Description

ICD-10 Q31.9 is a billable code used to indicate a diagnosis of congenital malformation of larynx, unspecified.

Key Diagnostic Point:

Congenital malformations of the larynx can significantly impact respiratory function and overall health in neonates and infants. These malformations may include structural abnormalities such as laryngeal atresia, laryngeal webbing, or other unspecified defects that can obstruct the airway. The larynx plays a crucial role in breathing, phonation, and protecting the airway during swallowing. When malformations occur, they can lead to severe respiratory distress, aspiration, and feeding difficulties. Diagnosis typically involves imaging studies such as laryngoscopy or bronchoscopy, and management may require surgical intervention to correct the malformation and restore normal airway function. The unspecified nature of this code indicates that while a congenital malformation is present, the specific details of the defect are not documented, which can complicate treatment planning and coding accuracy.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in documentation quality regarding specific malformations.
  • Need for precise clinical details to differentiate from other respiratory conditions.
  • Potential overlap with other congenital codes related to respiratory system.
  • Variability in treatment approaches based on specific malformation types.

Audit Risk Factors

  • Inadequate documentation of the specific type of laryngeal malformation.
  • Failure to document associated congenital anomalies.
  • Inconsistent use of codes for similar conditions.
  • Lack of clarity in the clinical narrative regarding the impact on respiratory function.

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed clinical notes on respiratory status, feeding difficulties, and any interventions performed.

Common Clinical Scenarios

Infants presenting with stridor, respiratory distress, or failure to thrive due to airway obstruction.

Billing Considerations

Consideration of associated congenital anomalies and their impact on overall management.

Genetics

Documentation Requirements

Genetic testing results, family history of congenital conditions, and any syndromic associations.

Common Clinical Scenarios

Cases where congenital malformations are part of a genetic syndrome, requiring multidisciplinary management.

Billing Considerations

Understanding the genetic basis of congenital malformations to guide treatment and family counseling.

Coding Guidelines

Inclusion Criteria

Use Q31.9 When
  • Follow ICD
  • CM guidelines for coding congenital malformations, ensuring that all relevant clinical information is documented
  • Use additional codes to capture associated conditions or complications

Exclusion Criteria

Do NOT use Q31.9 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

31500CPT Code

Laryngoscopy, diagnostic, direct

Clinical Scenario

Used to evaluate laryngeal malformations in infants.

Documentation Requirements

Document indications for laryngoscopy and findings.

Specialty Considerations

Pediatric anesthesiology considerations for infants.

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. However, the unspecified nature of Q31.9 may lead to challenges in capturing the full clinical picture.

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. However, the unspecified nature of Q31.9 may lead to challenges in capturing the full clinical picture.

Reimbursement & Billing Impact

reimbursement processes. However, the unspecified nature of Q31.9 may lead to challenges in capturing the full clinical picture.

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 document to support the use of Q31.9?

Document the clinical findings, any imaging studies performed, and the impact of the malformation on the patient's respiratory function and overall health. Include any associated congenital anomalies.