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v1.0.0
ICD-10 Guide
ICD-10 CodesQ66.42

Q66.42

Billable

Congenital talipes calcaneovalgus, left foot

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

Code Description

ICD-10 Q66.42 is a billable code used to indicate a diagnosis of congenital talipes calcaneovalgus, left foot.

Key Diagnostic Point:

Congenital talipes calcaneovalgus, commonly referred to as 'flat foot' or 'calcaneovalgus foot', is a deformity characterized by the foot being positioned in a dorsiflexed and everted position. This condition is typically present at birth and can affect one or both feet. The left foot is specifically noted in this code. The etiology of this condition is often multifactorial, including genetic predispositions and environmental factors during pregnancy. Clinically, it may present with a noticeable deformity, but many cases resolve spontaneously without intervention. However, some infants may require physical therapy or orthotic devices to correct the foot position. Early diagnosis and management are crucial to prevent complications such as difficulty in walking or further musculoskeletal issues. The condition is often associated with other congenital malformations, particularly those affecting the musculoskeletal system, and may require a multidisciplinary approach for optimal management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between congenital and acquired conditions
  • Potential association with other congenital anomalies
  • Variability in clinical presentation and severity
  • Need for precise documentation of laterality

Audit Risk Factors

  • Inadequate documentation of the condition's severity
  • Failure to note associated congenital anomalies
  • Incorrect coding of laterality
  • Misinterpretation of clinical notes regarding treatment

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed clinical notes on the infant's physical examination, including foot positioning and any associated musculoskeletal issues.

Common Clinical Scenarios

Infants presenting with foot deformities during routine check-ups or referrals from obstetricians.

Billing Considerations

Consideration of family history of congenital conditions and the need for multidisciplinary evaluation.

Genetics

Documentation Requirements

Genetic counseling notes if there is a suspected hereditary component, including family history and any genetic testing results.

Common Clinical Scenarios

Cases where congenital talipes calcaneovalgus is part of a syndrome or associated with chromosomal abnormalities.

Billing Considerations

Awareness of syndromic associations and the need for genetic evaluation in complex cases.

Coding Guidelines

Inclusion Criteria

Use Q66.42 When
  • Follow the ICD
  • CM guidelines for coding congenital malformations, ensuring accurate documentation of laterality and associated conditions
  • Use additional codes as necessary to capture any related congenital anomalies

Exclusion Criteria

Do NOT use Q66.42 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

29580CPT Code

Application of a short leg cast

Clinical Scenario

Used in cases where casting is indicated for correction of foot position.

Documentation Requirements

Document the reason for casting and the condition being treated.

Specialty Considerations

Pediatric specialists should ensure proper casting techniques are followed.

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 granularity of data collection and enhancing the ability to track outcomes and resource utilization.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the granularity of data collection and enhancing the ability to track outcomes and resource utilization.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the granularity of data collection and enhancing the ability to track outcomes and resource utilization.

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 significance of coding laterality in congenital talipes calcaneovalgus?

Coding laterality is crucial as it specifies which foot is affected, impacting treatment decisions and outcomes. Accurate documentation ensures appropriate care and billing.