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ICD-10 Guide
ICD-10 CodesQ66.211

Q66.211

Billable

Congenital metatarsus primus varus, right foot

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

Code Description

ICD-10 Q66.211 is a billable code used to indicate a diagnosis of congenital metatarsus primus varus, right foot.

Key Diagnostic Point:

Congenital metatarsus primus varus, also known as hallux varus, is a deformity characterized by the lateral deviation of the first metatarsal bone in the right foot. This condition typically presents at birth and can lead to functional impairment and cosmetic concerns. The etiology is often multifactorial, involving genetic predispositions and environmental factors during fetal development. Clinically, it may be associated with other congenital foot deformities such as clubfoot or congenital talipes equinovarus. Diagnosis is primarily clinical, supported by physical examination and, if necessary, imaging studies to assess the degree of deformity. Treatment options vary based on severity and may include conservative management with orthotics or surgical intervention to realign the metatarsal and restore normal foot function. Early intervention is crucial to prevent complications such as gait abnormalities and foot pain.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and severity of the condition
  • Potential association with other congenital deformities
  • Need for precise documentation of clinical findings
  • Differentiation from similar foot deformities

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to report associated congenital conditions
  • Misclassification of the severity of the deformity
  • Lack of follow-up documentation post-treatment

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

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

Common Clinical Scenarios

Common scenarios include newborn assessments where foot deformities are identified, and follow-up visits for monitoring treatment progress.

Billing Considerations

Consideration should be given to the developmental milestones of the child and the impact of the deformity on mobility.

Genetics

Documentation Requirements

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

Common Clinical Scenarios

Genetic counseling sessions for families with a history of congenital foot deformities or syndromes that include foot malformations.

Billing Considerations

Awareness of genetic syndromes that may present with metatarsus primus varus is essential for accurate coding.

Coding Guidelines

Inclusion Criteria

Use Q66.211 When
  • According to official coding guidelines, congenital conditions should be coded based on the specific diagnosis and any associated anomalies
  • Documentation must support the diagnosis and treatment plan

Exclusion Criteria

Do NOT use Q66.211 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

28200CPT Code

Osteotomy, first metatarsal

Clinical Scenario

Used in surgical correction of metatarsus primus varus.

Documentation Requirements

Pre-operative assessment and surgical notes detailing the procedure.

Specialty Considerations

Pediatric orthopedic specialists should document the rationale for surgical intervention.

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 accuracy of data collection and reimbursement processes for congenital malformations.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the accuracy of data collection and reimbursement processes for congenital malformations.

Reimbursement & Billing Impact

reimbursement processes for congenital malformations.

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?

Accurate coding of congenital metatarsus primus varus is crucial for appropriate treatment planning, tracking outcomes, and ensuring proper reimbursement for services rendered. It also aids in understanding the prevalence and impact of congenital foot deformities in pediatric populations.