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ICD-10 Guide
ICD-10 CodesChapter 4: Endocrine, nutritional and metabolic diseasesE26

E26

Billable

Hyperaldosteronism

Chapter 4:Endocrine, nutritional and metabolic diseases

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

Code Description

ICD-10 E26 is a billable code used to indicate a diagnosis of hyperaldosteronism.

Key Diagnostic Point:

Hyperaldosteronism, also known as primary aldosteronism, is a condition characterized by excessive production of the hormone aldosterone from the adrenal glands. This overproduction leads to increased sodium retention, potassium excretion, and water retention, resulting in hypertension and potential cardiovascular complications. The condition can be classified into primary hyperaldosteronism, often due to adrenal adenomas or bilateral adrenal hyperplasia, and secondary hyperaldosteronism, which is a response to factors such as renal artery stenosis or heart failure. Patients may present with symptoms such as hypertension, muscle weakness, fatigue, and metabolic alkalosis. Diagnosis typically involves measuring plasma aldosterone and renin levels, along with imaging studies to identify adrenal abnormalities. Treatment options include mineralocorticoid receptor antagonists, surgical intervention for adenomas, and management of underlying conditions in secondary cases. Understanding the endocrine pathways and the role of adrenal gland dysfunction is crucial for effective management and coding of this condition.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between primary and secondary hyperaldosteronism
  • Understanding the relationship with other endocrine disorders
  • Variability in clinical presentation and laboratory findings
  • Need for comprehensive documentation of hormone levels and imaging results

Audit Risk Factors

  • Inadequate documentation of laboratory results
  • Failure to specify primary vs. secondary hyperaldosteronism
  • Lack of supporting clinical evidence for diagnosis
  • Incorrect coding of associated conditions

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Detailed hormone level assessments, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with resistant hypertension and electrolyte imbalances.

Billing Considerations

Ensure clear documentation of the diagnostic workup and treatment response.

Nephrology

Documentation Requirements

Assessment of renal function and electrolyte levels, along with any renal imaging.

Common Clinical Scenarios

Patients with secondary hyperaldosteronism due to renal artery stenosis.

Billing Considerations

Document the relationship between renal function and aldosterone levels.

Coding Guidelines

Inclusion Criteria

Use E26 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the condition's type (primary vs
  • secondary) and any related complications
  • Include relevant laboratory findings and imaging studies in the documentation

Exclusion Criteria

Do NOT use E26 When
No specific exclusions found.

Related CPT Codes

84144CPT Code

Aldosterone level test

Clinical Scenario

Used to confirm diagnosis of hyperaldosteronism.

Documentation Requirements

Document the reason for the test and the results.

Specialty Considerations

Endocrinologists should ensure comprehensive hormone panels are ordered.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of hyperaldosteronism, enabling better tracking of the condition and its management. This specificity aids in research and improves patient care outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of hyperaldosteronism, enabling better tracking of the condition and its management. This specificity aids in research and improves patient care outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of hyperaldosteronism, enabling better tracking of the condition and its management. This specificity aids in research and improves patient care outcomes.

Resources

Clinical References

  • •
    American Association of Clinical Endocrinologists

Coding & Billing References

  • •
    American Association of Clinical Endocrinologists

Frequently Asked Questions

What are the common symptoms of hyperaldosteronism?

Common symptoms include hypertension, muscle weakness, fatigue, and metabolic alkalosis due to electrolyte imbalances.

How is hyperaldosteronism diagnosed?

Diagnosis typically involves measuring plasma aldosterone and renin levels, along with imaging studies to identify adrenal abnormalities.