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v1.0.0
ICD-10 Guide
ICD-10 CodesQ35.1

Q35.1

Billable

Cleft hard palate

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

Code Description

ICD-10 Q35.1 is a billable code used to indicate a diagnosis of cleft hard palate.

Key Diagnostic Point:

Cleft hard palate is a congenital malformation characterized by an opening or gap in the hard palate, which is the bony front part of the roof of the mouth. This condition occurs when the tissues that form the hard palate do not fully come together during fetal development, leading to a split that can vary in size and severity. Cleft hard palate can occur in isolation or in conjunction with other congenital anomalies, such as cleft lip or other craniofacial abnormalities. It can significantly impact feeding, speech development, and dental health. Children with this condition may require multidisciplinary care, including surgical intervention to repair the cleft, speech therapy, and orthodontic treatment as they grow. The presence of associated congenital malformations, such as choanal atresia (blockage of the nasal passage), tracheoesophageal fistula (abnormal connection between the trachea and esophagus), and lung hypoplasia (underdeveloped lungs), can complicate the clinical picture and necessitate careful management and coding considerations.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in associated congenital conditions
  • Need for multidisciplinary documentation
  • Potential for multiple surgical interventions
  • Impact on feeding and speech development

Audit Risk Factors

  • Inadequate documentation of associated congenital anomalies
  • Failure to capture all relevant procedures performed
  • Misclassification of the severity of the cleft
  • Inconsistent coding of follow-up care and therapies

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation should include detailed descriptions of the cleft, associated feeding difficulties, and any interventions performed. Growth and developmental assessments are also critical.

Common Clinical Scenarios

Common scenarios include newborns presenting with feeding difficulties, children requiring speech therapy, and those undergoing surgical repair of the cleft.

Billing Considerations

Coders should be aware of the potential for multiple surgeries and the need for ongoing assessments of speech and dental health.

Genetics

Documentation Requirements

Genetic documentation should include family history, potential syndromic associations, and results of genetic testing if performed.

Common Clinical Scenarios

Scenarios may involve genetic counseling for families with a history of cleft conditions or syndromes associated with clefting.

Billing Considerations

Consideration of chromosomal abnormalities that may be associated with cleft palate, such as 22q11.2 deletion syndrome, is essential for accurate coding.

Coding Guidelines

Inclusion Criteria

Use Q35.1 When
  • According to ICD
  • 10 coding guidelines, congenital conditions should be coded based on the specific type and severity of the malformation, as well as any associated conditions
  • Documentation must support the diagnosis and any procedures performed

Exclusion Criteria

Do NOT use Q35.1 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

40700CPT Code

Palatoplasty

Clinical Scenario

Used for surgical repair of cleft hard palate.

Documentation Requirements

Surgical notes detailing the procedure and any complications.

Specialty Considerations

Pediatric surgeons should document the specifics of the repair and any follow-up care.

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 ability to capture associated anomalies and the complexity of care required.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the ability to capture associated anomalies and the complexity of care required.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the ability to capture associated anomalies and the complexity of care required.

Resources

Clinical References

  • •
    American Academy of Pediatrics - Cleft Palate

Coding & Billing References

  • •
    American Academy of Pediatrics - Cleft Palate

Frequently Asked Questions

What is the difference between cleft hard palate and cleft lip?

Cleft hard palate refers specifically to a gap in the bony part of the roof of the mouth, while cleft lip involves a split in the upper lip. Both can occur together or separately, and each has different implications for treatment and care.