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ICD-10 Guide
ICD-10 CodesC75.9

C75.9

Billable

Malignant neoplasm of endocrine gland, unspecified

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

Code Description

ICD-10 C75.9 is a billable code used to indicate a diagnosis of malignant neoplasm of endocrine gland, unspecified.

Key Diagnostic Point:

C75.9 refers to a malignant neoplasm of an unspecified endocrine gland. Endocrine glands are responsible for producing hormones that regulate various bodily functions, including metabolism, growth, and mood. Malignancies in these glands can disrupt hormone production, leading to significant metabolic and physiological disturbances. Common endocrine glands include the thyroid, adrenal glands, pituitary gland, and pancreas. The unspecified nature of this code indicates that the specific gland affected is not documented, which can complicate treatment and management. Symptoms may vary widely depending on the gland involved and the hormones affected, potentially leading to conditions such as hyperthyroidism, Cushing's syndrome, or diabetes. Accurate diagnosis often requires imaging studies, laboratory tests to assess hormone levels, and sometimes biopsy. The lack of specificity in this code can pose challenges in treatment planning and may necessitate further investigation to determine the exact nature and location of the malignancy.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Lack of specificity regarding the affected gland
  • Variability in symptoms and hormone dysfunction
  • Need for comprehensive diagnostic workup
  • Potential for overlapping symptoms with benign conditions

Audit Risk Factors

  • Insufficient documentation of the specific gland involved
  • Inadequate clinical rationale for the unspecified code
  • Failure to document hormone levels or related symptoms
  • Lack of follow-up documentation on treatment outcomes

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Detailed documentation of hormone levels, imaging results, and clinical symptoms.

Common Clinical Scenarios

Patients presenting with unexplained weight changes, fatigue, or metabolic disturbances.

Billing Considerations

Endocrinologists must ensure that all relevant tests and evaluations are documented to support the diagnosis.

Oncology

Documentation Requirements

Comprehensive cancer staging and treatment plans, including surgical and medical interventions.

Common Clinical Scenarios

Patients undergoing treatment for suspected or confirmed endocrine malignancies.

Billing Considerations

Oncologists should document the multidisciplinary approach to treatment, including referrals to endocrinologists.

Coding Guidelines

Inclusion Criteria

Use C75.9 When
  • According to ICD
  • 10 coding guidelines, C75
  • 9 should be used when the specific endocrine gland affected is not documented
  • Coders should ensure that all relevant clinical information is available to support the use of this code

Exclusion Criteria

Do NOT use C75.9 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

88305CPT Code

Pathology examination, surgical

Clinical Scenario

Used when a biopsy of the endocrine gland is performed.

Documentation Requirements

Pathology report must be included in the patient's medical record.

Specialty Considerations

Endocrinologists and oncologists should ensure that biopsy results are clearly documented.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more detailed coding of malignancies, but the use of unspecified codes like C75.9 may lead to challenges in data analysis and treatment planning.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more detailed coding of malignancies, but the use of unspecified codes like C75.9 may lead to challenges in data analysis and treatment planning.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more detailed coding of malignancies, but the use of unspecified codes like C75.9 may lead to challenges in data analysis and treatment planning.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

When should I use C75.9?

C75.9 should be used when a malignant neoplasm of an endocrine gland is diagnosed, but the specific gland is not documented. Ensure that all relevant clinical information is available to support this code.