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ICD-10 Guide
ICD-10 CodesC75.1

C75.1

Billable

Malignant neoplasm of pituitary gland

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

Code Description

ICD-10 C75.1 is a billable code used to indicate a diagnosis of malignant neoplasm of pituitary gland.

Key Diagnostic Point:

Malignant neoplasm of the pituitary gland is a rare but serious endocrine malignancy that arises from the cells of the pituitary gland, which is responsible for producing and regulating various hormones that control critical bodily functions. These tumors can disrupt normal hormone production, leading to a range of metabolic and physiological disturbances. Symptoms may include headaches, vision changes, and hormonal imbalances, such as Cushing's disease or acromegaly, depending on the type of hormone secreted by the tumor. Diagnosis typically involves imaging studies like MRI and hormonal assays to assess pituitary function. Treatment often requires a multidisciplinary approach, including surgical resection, radiation therapy, and pharmacological management to control hormone levels. The prognosis varies based on tumor size, type, and response to treatment, making early detection and accurate coding essential for effective management and reimbursement.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Differentiation between benign and malignant tumors
  • Variability in hormone secretion and associated symptoms
  • Need for comprehensive documentation of imaging and lab results
  • Potential for multiple co-existing endocrine disorders

Audit Risk Factors

  • Inadequate documentation of tumor type and behavior
  • Failure to document hormone levels and symptoms
  • Misclassification of benign vs. malignant tumors
  • Lack of follow-up documentation post-treatment

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Thorough documentation of hormonal assays, imaging studies, and clinical symptoms.

Common Clinical Scenarios

Patients presenting with symptoms of hormonal excess or deficiency, such as Cushing's syndrome or pituitary apoplexy.

Billing Considerations

Endocrinologists must ensure that all hormonal levels are documented, as they are critical for accurate coding and treatment planning.

Neurosurgery

Documentation Requirements

Detailed operative reports and post-operative follow-up notes.

Common Clinical Scenarios

Surgical intervention for pituitary tumors, including transsphenoidal resection.

Billing Considerations

Neurosurgeons should document the extent of resection and any complications to support coding for malignancy.

Coding Guidelines

Inclusion Criteria

Use C75.1 When
  • According to ICD
  • 10 guidelines, C75
  • 1 should be used when there is clear documentation of malignancy in the pituitary gland
  • Accurate coding requires comprehensive documentation of the tumor's behavior and associated symptoms

Exclusion Criteria

Do NOT use C75.1 When
  • Exclusion criteria include benign tumors and other neoplasms not originating from the pituitary

Related ICD-10 Codes

Related CPT Codes

61548CPT Code

Transsphenoidal resection of pituitary tumor

Clinical Scenario

Used during surgical intervention for malignant pituitary tumors.

Documentation Requirements

Operative report detailing the procedure and findings.

Specialty Considerations

Neurosurgeons must document the extent of resection and any complications.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding malignant neoplasms, including those of the pituitary gland. This specificity aids in better tracking of treatment outcomes and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding malignant neoplasms, including those of the pituitary gland. This specificity aids in better tracking of treatment outcomes and resource allocation.

Reimbursement & Billing Impact

reimbursement.

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

What are the common symptoms of a malignant pituitary tumor?

Common symptoms include headaches, visual disturbances, hormonal imbalances, and signs of increased intracranial pressure.

How is a malignant pituitary tumor diagnosed?

Diagnosis typically involves MRI imaging, hormonal assays, and sometimes biopsy to confirm malignancy.

What treatments are available for malignant pituitary tumors?

Treatment options include surgical resection, radiation therapy, and medications to manage hormone levels.