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ICD-10 Guide
ICD-10 CodesQ89.1

Q89.1

Billable

Congenital malformations of adrenal gland

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

Code Description

ICD-10 Q89.1 is a billable code used to indicate a diagnosis of congenital malformations of adrenal gland.

Key Diagnostic Point:

Congenital malformations of the adrenal gland encompass a range of structural anomalies that can affect adrenal function and hormone production. These malformations may include agenesis, hypoplasia, or ectopic adrenal tissue. The adrenal glands, located atop each kidney, are crucial for producing hormones such as cortisol, aldosterone, and adrenaline, which are vital for metabolism, blood pressure regulation, and stress response. Congenital adrenal hyperplasia (CAH) is a common condition associated with adrenal malformations, often resulting from enzyme deficiencies that impair steroidogenesis. Clinical manifestations can vary widely, from asymptomatic cases to severe adrenal insufficiency, ambiguous genitalia in females, and electrolyte imbalances. Diagnosis typically involves imaging studies, hormonal assays, and genetic testing to identify underlying genetic mutations. Early recognition and management are essential to prevent life-threatening adrenal crises and to address associated metabolic disturbances.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and severity of symptoms
  • Need for comprehensive hormonal evaluation and genetic testing
  • Potential for associated congenital anomalies requiring additional coding
  • Differentiation from other adrenal disorders and conditions

Audit Risk Factors

  • Inadequate documentation of clinical findings and hormonal evaluations
  • Failure to capture associated congenital anomalies
  • Misclassification of adrenal disorders due to overlapping symptoms
  • Lack of genetic testing results in the medical record

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation should include growth parameters, developmental milestones, and specific hormonal assessments relevant to adrenal function.

Common Clinical Scenarios

Common scenarios include newborn screening for CAH, management of adrenal crises, and follow-up for growth and development in affected children.

Billing Considerations

Considerations include the need for ongoing monitoring of hormone levels and potential impacts on growth and development.

Genetics

Documentation Requirements

Genetic documentation should include family history, results of genetic testing, and any identified mutations associated with adrenal malformations.

Common Clinical Scenarios

Genetic counseling for families with a history of congenital adrenal hyperplasia and discussions regarding inheritance patterns.

Billing Considerations

Considerations include the implications of genetic findings on treatment options and family planning.

Coding Guidelines

Inclusion Criteria

Use Q89.1 When
  • According to ICD
  • 10 coding guidelines, congenital conditions should be coded based on the specific malformation and any associated conditions
  • Documentation must support the diagnosis and any related treatments or interventions

Exclusion Criteria

Do NOT use Q89.1 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

83001CPT Code

Cortisol level test

Clinical Scenario

Used to evaluate adrenal function in patients with suspected adrenal malformations.

Documentation Requirements

Document the reason for testing and any relevant clinical findings.

Specialty Considerations

Endocrinology may require additional documentation regarding hormone replacement therapy.

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 ability to capture the complexity of adrenal malformations and their management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the ability to capture the complexity of adrenal malformations and their management.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the ability to capture the complexity of adrenal malformations and their management.

Resources

Clinical References

  • •
    Congenital Adrenal Hyperplasia: A Guide for Patients and Families

Coding & Billing References

  • •
    Congenital Adrenal Hyperplasia: A Guide for Patients and Families

Frequently Asked Questions

What are the common symptoms of congenital adrenal malformations?

Common symptoms include ambiguous genitalia in females, adrenal crises, electrolyte imbalances, and growth delays. Symptoms can vary based on the specific malformation and associated hormonal deficiencies.