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v1.0.0
ICD-10 Guide
ICD-10 CodesQ66.222

Q66.222

Billable

Congenital metatarsus adductus, left foot

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

Code Description

ICD-10 Q66.222 is a billable code used to indicate a diagnosis of congenital metatarsus adductus, left foot.

Key Diagnostic Point:

Congenital metatarsus adductus is a common foot deformity characterized by the inward bending of the metatarsal bones, leading to a curved appearance of the foot. This condition is often identified at birth and can be associated with other congenital malformations. In the case of left foot involvement, the left metatarsals are adducted, which may affect the child's gait and overall foot function. The etiology of metatarsus adductus is not fully understood, but it is believed to be related to intrauterine positioning and genetic factors. Treatment options vary based on the severity of the condition and may include observation, stretching exercises, or corrective casting. Early intervention is crucial to prevent long-term complications such as foot pain or difficulty in walking. Accurate coding of this condition is essential for proper management and reimbursement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiation from similar foot deformities such as clubfoot.
  • Need for precise documentation of laterality (left foot).
  • Potential association with other congenital conditions.
  • Variability in treatment approaches and follow-up care.

Audit Risk Factors

  • Inadequate documentation of clinical findings.
  • Failure to specify laterality.
  • Coding without supporting diagnostic evidence.
  • Misidentification of the condition as a non-congenital issue.

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation should include detailed clinical assessments, treatment plans, and follow-up evaluations.

Common Clinical Scenarios

Common scenarios include newborn assessments, referrals for physical therapy, and monitoring of developmental milestones.

Billing Considerations

Consideration of family history and potential genetic implications is important for accurate coding.

Genetics

Documentation Requirements

Genetic documentation should include family history, genetic testing results, and any associated syndromic features.

Common Clinical Scenarios

Scenarios may involve genetic counseling for families with a history of congenital malformations.

Billing Considerations

Awareness of chromosomal abnormalities that may co-occur with metatarsus adductus is crucial.

Coding Guidelines

Inclusion Criteria

Use Q66.222 When
  • Follow official coding guidelines for congenital malformations, ensuring accurate documentation of the condition, laterality, and any associated diagnoses

Exclusion Criteria

Do NOT use Q66.222 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

29580CPT Code

Application of a long leg cast

Clinical Scenario

Used in the treatment of metatarsus adductus when casting is indicated.

Documentation Requirements

Document the reason for casting, the condition being treated, and follow-up care.

Specialty Considerations

Pediatric specialists should ensure that the casting technique is appropriate for the child's age and condition.

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 diagnoses and treatment tracking.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the accuracy of diagnoses and treatment tracking.

Reimbursement & Billing Impact

reimbursement.

Resources

Clinical References

  • •
    American Academy of Pediatrics - Coding for Pediatric Care

Coding & Billing References

  • •
    American Academy of Pediatrics - Coding for Pediatric Care

Frequently Asked Questions

What is the significance of coding laterality in congenital metatarsus adductus?

Coding laterality is crucial as it impacts treatment decisions and outcomes. Accurate documentation ensures that the specific foot affected is identified, which is essential for appropriate management and follow-up.