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v1.0.0
ICD-10 Guide
ICD-10 CodesQ66.5

Q66.5

Billable

Congenital pes planus

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

Code Description

ICD-10 Q66.5 is a billable code used to indicate a diagnosis of congenital pes planus.

Key Diagnostic Point:

Congenital pes planus, commonly known as flatfoot, is a condition characterized by the absence of the normal arch of the foot. This condition can be present at birth or develop during childhood. In congenital cases, the foot structure is typically altered due to genetic factors or developmental issues during gestation. While many children with congenital pes planus may not experience significant symptoms, some may have associated pain or discomfort, particularly with prolonged standing or physical activity. The condition can be associated with other congenital malformations, including those affecting the musculoskeletal system. Diagnosis is typically made through physical examination and may include imaging studies to assess the foot structure. Treatment options vary based on severity and symptoms, ranging from observation and orthotic devices to surgical intervention in more severe cases. Understanding the implications of congenital pes planus is crucial for pediatric care, as it may affect a child's mobility and overall quality of life.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and associated conditions
  • Need for detailed documentation of symptoms and treatment
  • Potential for co-occurring congenital anomalies
  • Differentiation from acquired flatfoot conditions

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to report associated congenital anomalies
  • Incorrect coding of severity or treatment type
  • Lack of follow-up documentation for treatment outcomes

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation should include detailed physical examination findings, family history of congenital conditions, and any associated symptoms or comorbidities.

Common Clinical Scenarios

Common scenarios include routine pediatric check-ups where flatfoot is identified, referrals for orthopedic evaluation, and management of associated pain.

Billing Considerations

Considerations include the child's age, activity level, and any impact on mobility or quality of life.

Genetics

Documentation Requirements

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

Common Clinical Scenarios

Scenarios may involve genetic counseling for families with a history of congenital malformations or syndromes associated with pes planus.

Billing Considerations

Consideration of genetic syndromes that may present with pes planus, such as Ehlers-Danlos syndrome or Down syndrome.

Coding Guidelines

Inclusion Criteria

Use Q66.5 When
  • 10 guidelines for congenital conditions emphasize the importance of accurate documentation of the condition's nature, associated anomalies, and treatment approaches
  • Coders should ensure that the congenital nature of the condition is clearly documented to avoid misclassification

Exclusion Criteria

Do NOT use Q66.5 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

28485CPT Code

Surgical correction of flatfoot

Clinical Scenario

Used when surgical intervention is required for severe cases of congenital pes planus.

Documentation Requirements

Detailed surgical notes and pre-operative assessments.

Specialty Considerations

Orthopedic specialists should provide comprehensive documentation of the surgical procedure and outcomes.

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 the complexity of congenital pes planus and its associated anomalies.

ICD-9 vs ICD-10

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

Reimbursement & Billing Impact

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

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 is the difference between congenital pes planus and acquired flatfoot?

Congenital pes planus is present at birth and results from developmental anomalies, while acquired flatfoot develops later due to factors such as injury or degenerative changes. Accurate coding requires clear documentation of the condition's onset and nature.