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ICD-10 Guide
ICD-10 CodesE71.529

E71.529

Billable

X-linked adrenoleukodystrophy, unspecified type

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 E71.529 is a billable code used to indicate a diagnosis of x-linked adrenoleukodystrophy, unspecified type.

Key Diagnostic Point:

X-linked adrenoleukodystrophy (X-ALD) is a genetic disorder characterized by the accumulation of very long-chain fatty acids (VLCFAs) in the body due to a deficiency in the enzyme adrenoleukodystrophy protein (ALDP). This condition primarily affects males and is linked to mutations in the ABCD1 gene located on the X chromosome. The clinical manifestations of X-ALD can vary widely, ranging from adrenal insufficiency to progressive neurological decline. Patients may present with symptoms such as behavioral changes, cognitive impairment, and motor dysfunction, often leading to severe disability. The unspecified type indicates that the specific clinical presentation or subtype has not been determined, which can complicate diagnosis and management. Early identification through newborn screening and genetic testing is crucial for effective intervention and management of symptoms. The condition is part of a broader category of metabolic disorders, particularly those involving lipid metabolism, and requires a multidisciplinary approach for optimal care.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and severity of symptoms
  • Need for genetic testing to confirm diagnosis
  • Differentiation from other metabolic disorders
  • Potential for co-morbid conditions affecting coding

Audit Risk Factors

  • Inadequate documentation of genetic testing results
  • Failure to document the clinical presentation accurately
  • Misclassification of the unspecified type as a specific subtype
  • Lack of family history documentation

Specialty Focus

Medical Specialties

Genetics

Documentation Requirements

Detailed family history, genetic test results, and clinical findings.

Common Clinical Scenarios

Patients presenting with neurological symptoms and a family history of X-ALD.

Billing Considerations

Ensure accurate documentation of genetic counseling and testing outcomes.

Neurology

Documentation Requirements

Neurological assessments, imaging studies, and symptomatology.

Common Clinical Scenarios

Patients with progressive neurological decline and behavioral changes.

Billing Considerations

Document the timeline of symptom progression and any interventions.

Coding Guidelines

Inclusion Criteria

Use E71.529 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the condition's clinical presentation
  • Include any relevant family history and genetic testing results

Exclusion Criteria

Do NOT use E71.529 When
  • Exclude conditions that are not related to X

Related ICD-10 Codes

Related CPT Codes

81213CPT Code

Genetic testing for ABCD1 gene mutations

Clinical Scenario

Used when confirming a diagnosis of X-ALD.

Documentation Requirements

Document the reason for testing and results.

Specialty Considerations

Genetics specialists should ensure comprehensive family history is included.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 allows for more specific coding of genetic conditions like X-ALD, improving the accuracy of patient records and facilitating better management of the disease.

ICD-9 vs ICD-10

The transition to ICD-10 allows for more specific coding of genetic conditions like X-ALD, improving the accuracy of patient records and facilitating better management of the disease.

Reimbursement & Billing Impact

The transition to ICD-10 allows for more specific coding of genetic conditions like X-ALD, improving the accuracy of patient records and facilitating better management of the disease.

Resources

Clinical References

  • •
    National Organization for Rare Disorders (NORD)

Coding & Billing References

  • •
    National Organization for Rare Disorders (NORD)

Frequently Asked Questions

What is the significance of the unspecified type in E71.529?

The unspecified type indicates that the specific clinical presentation or subtype of X-ALD has not been determined, which can affect treatment and management strategies.