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ICD-10 Guide
ICD-10 CodesQ71.5

Q71.5

Billable

Longitudinal reduction defect of ulna

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

Code Description

ICD-10 Q71.5 is a billable code used to indicate a diagnosis of longitudinal reduction defect of ulna.

Key Diagnostic Point:

Longitudinal reduction defect of the ulna is a congenital malformation characterized by the underdevelopment or absence of the ulna bone in the forearm. This condition can lead to significant functional impairment, affecting the range of motion and strength of the affected limb. Patients may present with a variety of symptoms, including limited wrist and elbow mobility, deformities of the hand, and potential compensatory mechanisms in the adjacent joints. The defect may occur in isolation or as part of a syndrome involving other skeletal or systemic anomalies. Diagnosis typically involves clinical examination and imaging studies such as X-rays or MRI to assess the extent of the defect and any associated abnormalities. Management may include physical therapy, orthopedic interventions, or surgical correction depending on the severity of the condition and the functional impact on the patient. Early intervention is crucial to optimize outcomes and improve the quality of life for affected individuals.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and severity of the defect
  • Potential for associated syndromic conditions
  • Need for detailed documentation of functional impairment
  • Differentiation from other limb reduction defects

Audit Risk Factors

  • Inadequate documentation of the defect's severity
  • Failure to document associated conditions or syndromes
  • Misclassification of the defect as an acquired condition
  • Lack of clarity in treatment plans and outcomes

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed growth and development assessments, functional evaluations, and treatment plans must be documented to support the diagnosis.

Common Clinical Scenarios

Pediatric patients presenting with limb deformities, requiring orthopedic evaluation and potential surgical intervention.

Billing Considerations

Consideration of the child's overall development and any associated congenital anomalies is essential for accurate coding.

Genetics

Documentation Requirements

Genetic testing results, family history, and any syndromic associations must be documented to support the diagnosis and potential genetic counseling.

Common Clinical Scenarios

Cases where longitudinal reduction defects are part of a broader genetic syndrome requiring multidisciplinary management.

Billing Considerations

Understanding the genetic basis of the condition can aid in prognosis and management, necessitating thorough documentation.

Coding Guidelines

Inclusion Criteria

Use Q71.5 When
  • Follow the official ICD
  • CM guidelines for coding congenital malformations, ensuring accurate documentation of the condition's severity, associated anomalies, and treatment plans

Exclusion Criteria

Do NOT use Q71.5 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

25400CPT Code

Repair of congenital deformity of the forearm

Clinical Scenario

Used in cases where surgical intervention is required for correction of the ulna defect.

Documentation Requirements

Detailed operative reports and pre-operative assessments are necessary.

Specialty Considerations

Orthopedic specialists should provide comprehensive documentation of the surgical approach and expected outcomes.

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 longitudinal reduction defects.

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 longitudinal reduction defects.

Reimbursement & Billing Impact

reimbursement processes for longitudinal reduction defects.

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 Q71.5 accurately?

Accurate coding of Q71.5 is crucial for proper reimbursement, tracking of congenital conditions, and ensuring that patients receive appropriate care and interventions based on their specific needs.