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ICD-10 Guide
ICD-10 CodesChapter 4: Endocrine, nutritional and metabolic diseasesE24

E24

Billable

Cushing's syndrome

Chapter 4:Endocrine, nutritional and metabolic diseases

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

Code Description

ICD-10 E24 is a billable code used to indicate a diagnosis of cushing's syndrome.

Key Diagnostic Point:

Cushing's syndrome is a complex endocrine disorder characterized by excessive levels of cortisol in the blood, which can result from various causes, including pituitary adenomas (Cushing's disease), adrenal tumors, or ectopic ACTH production. The condition leads to a range of symptoms, including obesity, particularly around the trunk and face (moon facies), skin changes such as easy bruising and striae, hypertension, diabetes mellitus, and osteoporosis. The underlying pathophysiology involves dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis, leading to hypercortisolism. Diagnosis typically involves biochemical tests to measure cortisol levels, including 24-hour urinary free cortisol, late-night salivary cortisol, and suppression tests. Imaging studies may be necessary to identify the source of excess cortisol production. Management often requires surgical intervention, pharmacotherapy, or radiation therapy, depending on the etiology of the syndrome. Accurate coding is essential for appropriate treatment and reimbursement.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Variety of underlying causes (pituitary, adrenal, ectopic)
  • Need for comprehensive diagnostic testing
  • Potential for multiple comorbid conditions
  • Variability in clinical presentation

Audit Risk Factors

  • Inadequate documentation of diagnostic tests performed
  • Failure to specify the underlying cause of Cushing's syndrome
  • Misclassification of the type of Cushing's syndrome
  • Lack of documentation for comorbid conditions

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Detailed documentation of hormone levels, imaging studies, and treatment plans.

Common Clinical Scenarios

Diagnosis and management of Cushing's syndrome, including differential diagnosis from other endocrine disorders.

Billing Considerations

Ensure clarity in the documentation of the cause of hypercortisolism and any associated complications.

Surgery

Documentation Requirements

Operative reports detailing the surgical approach and findings.

Common Clinical Scenarios

Surgical intervention for adrenal tumors or pituitary adenomas causing Cushing's syndrome.

Billing Considerations

Document the rationale for surgery and any preoperative assessments performed.

Coding Guidelines

Inclusion Criteria

Use E24 When
  • Follow official ICD
  • CM coding guidelines, ensuring accurate documentation of the cause of Cushing's syndrome
  • Include any relevant comorbidities and specify the type of Cushing's syndrome when applicable

Exclusion Criteria

Do NOT use E24 When
No specific exclusions found.

Related CPT Codes

88305CPT Code

Pathology examination of adrenal tissue

Clinical Scenario

Used when adrenal tumors are suspected in patients with Cushing's syndrome.

Documentation Requirements

Pathology report and clinical notes detailing the indication for biopsy.

Specialty Considerations

Endocrinology and pathology must collaborate for accurate diagnosis.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of Cushing's syndrome, facilitating better tracking of the condition and its various causes, which can improve patient care and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of Cushing's syndrome, facilitating better tracking of the condition and its various causes, which can improve patient care and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    Cushing's Syndrome: Diagnosis and Management

Coding & Billing References

  • •
    Cushing's Syndrome: Diagnosis and Management

Frequently Asked Questions

What are the common causes of Cushing's syndrome?

Cushing's syndrome can be caused by pituitary adenomas (Cushing's disease), adrenal tumors, or ectopic ACTH production from tumors elsewhere in the body. Exogenous causes include long-term use of glucocorticoid medications.