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v1.0.0
ICD-10 Guide
ICD-10 CodesQ66.219

Q66.219

Billable

Congenital metatarsus primus varus, unspecified foot

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

Code Description

ICD-10 Q66.219 is a billable code used to indicate a diagnosis of congenital metatarsus primus varus, unspecified foot.

Key Diagnostic Point:

Congenital metatarsus primus varus is a foot deformity characterized by an abnormal angulation of the first metatarsal bone, leading to a varus position of the great toe. This condition is often present at birth and can result in functional limitations and cosmetic concerns. The etiology is multifactorial, including genetic predispositions and environmental influences during fetal development. Diagnosis is typically made through clinical examination, where the foot may appear to have a curved shape, and the great toe is angled towards the midline. Treatment options vary based on severity and may include conservative measures such as stretching exercises, orthotic devices, or surgical intervention in more severe cases. Accurate coding is essential for appropriate management and reimbursement, particularly in pediatric populations where early intervention can significantly improve outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and severity of the condition.
  • Need for precise documentation of foot structure and function.
  • Differentiation from other foot deformities such as clubfoot.
  • Potential for co-occurring congenital conditions requiring additional codes.

Audit Risk Factors

  • Inadequate documentation of the clinical examination findings.
  • Failure to specify the severity of the deformity.
  • Misclassification with other foot deformities.
  • Lack of documentation for associated conditions.

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Documentation should include detailed clinical findings, treatment plans, and follow-up assessments specific to pediatric patients.

Common Clinical Scenarios

Common scenarios include newborn assessments for foot deformities and follow-up visits for treatment efficacy.

Billing Considerations

Consideration of growth and development milestones in relation to the condition is crucial for accurate coding.

Genetics

Documentation Requirements

Genetic evaluations may be necessary to rule out syndromic associations with congenital foot deformities.

Common Clinical Scenarios

Genetic counseling sessions for families with a history of congenital malformations.

Billing Considerations

Documentation should include any genetic testing results that may influence treatment decisions.

Coding Guidelines

Inclusion Criteria

Use Q66.219 When
  • Follow the official ICD
  • CM guidelines for coding congenital malformations, ensuring specificity in documentation and adherence to coding conventions for congenital conditions

Exclusion Criteria

Do NOT use Q66.219 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

28200CPT Code

Correction of metatarsus primus varus

Clinical Scenario

Used in cases where surgical intervention is necessary for severe deformity.

Documentation Requirements

Surgical reports and pre-operative assessments must be documented.

Specialty Considerations

Pediatric orthopedic specialists should provide detailed operative notes.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding congenital conditions, improving the accuracy of data collection and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding congenital conditions, 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 is the significance of coding congenital metatarsus primus varus accurately?

Accurate coding is crucial for ensuring appropriate treatment plans, facilitating research on congenital conditions, and securing proper reimbursement for healthcare services. It also aids in tracking the prevalence and outcomes of congenital malformations.