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v1.0.0
ICD-10 Guide
ICD-10 CodesQ66.89

Q66.89

Billable

Other specified congenital deformities of feet

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

Code Description

ICD-10 Q66.89 is a billable code used to indicate a diagnosis of other specified congenital deformities of feet.

Key Diagnostic Point:

Congenital deformities of the feet can encompass a variety of conditions that affect the structure and function of the feet. These deformities may arise from genetic factors, environmental influences, or a combination of both. Conditions such as clubfoot, congenital vertical talus, and other specified deformities can lead to significant functional impairment if not addressed early. In the context of congenital malformations of the urinary system, conditions like renal agenesis, polycystic kidney disease, bladder exstrophy, and posterior urethral valves can co-occur with foot deformities, complicating the clinical picture. Renal agenesis, characterized by the absence of one or both kidneys, can lead to associated anomalies, including limb deformities. Polycystic kidney disease, a genetic disorder, can also present with musculoskeletal anomalies. Bladder exstrophy, a severe defect where the bladder is exposed outside the body, may be associated with foot deformities due to abnormal positioning in utero. Posterior urethral valves, which obstruct urine flow, can lead to renal damage and may also correlate with lower limb deformities. Accurate coding of these conditions requires a thorough understanding of their interrelations and the specific clinical details of each case.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation of congenital foot deformities
  • Potential co-occurrence with other congenital anomalies
  • Need for precise documentation of associated conditions
  • Differentiation from acquired deformities

Audit Risk Factors

  • Inadequate documentation of associated congenital conditions
  • Misclassification of congenital versus acquired deformities
  • Failure to capture all relevant congenital anomalies
  • Inconsistent use of codes for similar conditions

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation must include detailed descriptions of the deformities, associated conditions, and any interventions performed.

Common Clinical Scenarios

Common scenarios include infants presenting with clubfoot or other foot deformities, often evaluated alongside renal anomalies.

Billing Considerations

Coders should be aware of the developmental implications of congenital foot deformities and their potential impact on overall health.

Genetics

Documentation Requirements

Genetic documentation should include family history, genetic testing results, and any syndromic associations with congenital conditions.

Common Clinical Scenarios

Genetic counseling for families with a history of congenital anomalies, including foot deformities and renal conditions.

Billing Considerations

Consideration of genetic syndromes that may present with both foot deformities and renal anomalies is crucial for accurate coding.

Coding Guidelines

Inclusion Criteria

Use Q66.89 When
  • Official coding guidelines emphasize the importance of specificity in documenting congenital conditions
  • Coders should ensure that all relevant congenital anomalies are captured and that the relationship between foot deformities and other congenital conditions is clearly articulated

Exclusion Criteria

Do NOT use Q66.89 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

28285CPT Code

Surgical correction of clubfoot

Clinical Scenario

Used in cases of congenital clubfoot requiring surgical intervention.

Documentation Requirements

Detailed operative notes and pre-operative assessments.

Specialty Considerations

Pediatric orthopedic specialists often perform these procedures.

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, enabling better tracking of congenital anomalies and their associations.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding congenital conditions, enabling better tracking of congenital anomalies and their associations.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding congenital conditions, enabling better tracking of congenital anomalies and their associations.

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 should I document when coding for congenital foot deformities?

Document the specific type of foot deformity, any associated congenital conditions, and the clinical implications of these anomalies. Include details of any surgical interventions or treatments provided.