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ICD-10 Guide
ICD-10 CodesE26.02

E26.02

Billable

Glucocorticoid-remediable aldosteronism

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

Code Description

ICD-10 E26.02 is a billable code used to indicate a diagnosis of glucocorticoid-remediable aldosteronism.

Key Diagnostic Point:

Glucocorticoid-remediable aldosteronism (GRA) is a rare genetic disorder characterized by the overproduction of aldosterone due to a mutation in the gene responsible for the regulation of aldosterone synthase. This condition is often caused by a chimeric gene formed by the fusion of the 11β-hydroxylase gene (CYP11B1) and the aldosterone synthase gene (CYP11B2). Patients with GRA typically present with hypertension and hypokalemia, which can lead to various cardiovascular complications if left untreated. The condition is termed 'glucocorticoid-remediable' because the administration of glucocorticoids can suppress the excessive aldosterone production, thereby normalizing blood pressure and potassium levels. Diagnosis is often confirmed through genetic testing and measurement of plasma aldosterone levels, particularly in response to ACTH stimulation. Management includes the use of glucocorticoids to control symptoms and prevent complications associated with hyperaldosteronism.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of genetic mutations and their implications.
  • Involves knowledge of hormone regulation and adrenal gland function.
  • Differentiation from other forms of hyperaldosteronism is necessary.
  • Documentation must include specific lab results and genetic testing.

Audit Risk Factors

  • Inadequate documentation of genetic testing results.
  • Failure to document the response to glucocorticoid therapy.
  • Misclassification with other forms of hyperaldosteronism.
  • Lack of detailed clinical notes regarding hypertension management.

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Detailed documentation of hormone levels, genetic testing results, and treatment plans.

Common Clinical Scenarios

Patients presenting with resistant hypertension and hypokalemia.

Billing Considerations

Endocrinologists must ensure comprehensive evaluations to differentiate GRA from other adrenal disorders.

Genetics

Documentation Requirements

Genetic testing results and family history documentation.

Common Clinical Scenarios

Patients with a family history of hypertension and unexplained electrolyte imbalances.

Billing Considerations

Geneticists should document the implications of findings for family members.

Coding Guidelines

Inclusion Criteria

Use E26.02 When
  • According to ICD
  • 10 coding guidelines, E26
  • 02 should be used when the condition is confirmed through genetic testing and clinical evaluation
  • It is important to document the specific symptoms and laboratory findings that support the diagnosis

Exclusion Criteria

Do NOT use E26.02 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

84144CPT Code

Aldosterone level test

Clinical Scenario

Used to confirm diagnosis of GRA.

Documentation Requirements

Document the reason for testing and results.

Specialty Considerations

Endocrinologists should ensure proper interpretation of results in the context of GRA.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of conditions like GRA, improving the accuracy of diagnoses and treatment plans. This specificity aids in better tracking of patient outcomes and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like GRA, improving the accuracy of diagnoses and treatment plans. This specificity aids in better tracking of patient outcomes and resource allocation.

Reimbursement & Billing Impact

reimbursement.

Resources

Clinical References

  • •
    Genetic Testing for Endocrine Disorders

Coding & Billing References

  • •
    Genetic Testing for Endocrine Disorders

Frequently Asked Questions

What is glucocorticoid-remediable aldosteronism?

Glucocorticoid-remediable aldosteronism is a genetic disorder that leads to excessive production of aldosterone, causing hypertension and electrolyte imbalances. It can be managed effectively with glucocorticoid therapy.