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v1.0.0
ICD-10 Guide
ICD-10 CodesQ18.2

Q18.2

Billable

Other branchial cleft malformations

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

Code Description

ICD-10 Q18.2 is a billable code used to indicate a diagnosis of other branchial cleft malformations.

Key Diagnostic Point:

Branchial cleft malformations are congenital anomalies resulting from improper development of the branchial apparatus during embryogenesis. These malformations can manifest as cysts, sinuses, or fistulas in the neck region, often located near the angle of the mandible. Other associated congenital conditions may include anomalies of the ear, face, and neck, such as cleft lip and palate, which can occur concurrently. Patients may present with swelling or infection of the cysts, leading to complications that require surgical intervention. The clinical significance of these malformations lies in their potential to cause functional and aesthetic issues, necessitating a multidisciplinary approach for management, including surgical correction and, in some cases, genetic counseling to assess for associated syndromes. Accurate coding is essential for appropriate treatment planning and reimbursement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and associated conditions
  • Need for detailed anatomical descriptions in documentation
  • Potential for co-occurring congenital anomalies
  • Differentiation from other neck masses

Audit Risk Factors

  • Inadequate documentation of the specific type of malformation
  • Failure to document associated congenital anomalies
  • Lack of clarity on the surgical interventions performed
  • Misclassification of the condition due to overlapping symptoms

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed history of the child's growth and development, including any associated congenital conditions.

Common Clinical Scenarios

Management of a child presenting with a branchial cleft cyst and associated ear anomalies.

Billing Considerations

Consideration of developmental milestones and potential impacts on speech and swallowing.

Genetics

Documentation Requirements

Family history and genetic testing results to identify potential syndromic associations.

Common Clinical Scenarios

Genetic counseling for families with a history of branchial cleft malformations.

Billing Considerations

Awareness of chromosomal abnormalities that may co-occur with branchial cleft anomalies.

Coding Guidelines

Inclusion Criteria

Use Q18.2 When
  • Follow the ICD
  • CM guidelines for coding congenital malformations, ensuring specificity in documentation
  • Use additional codes for associated conditions when applicable

Exclusion Criteria

Do NOT use Q18.2 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

21555CPT Code

Excision of branchial cleft cyst

Clinical Scenario

Used when a branchial cleft cyst is surgically removed.

Documentation Requirements

Operative report detailing the procedure and findings.

Specialty Considerations

Pediatric surgeons may have specific documentation requirements.

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.

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.

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 are the common presentations of branchial cleft malformations?

Common presentations include neck masses that may become infected or symptomatic, often located near the angle of the mandible. They can also be associated with ear anomalies and other congenital conditions.