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ICD-10 Guide
ICD-10 CodesC71.3

C71.3

Billable

Malignant neoplasm of parietal lobe

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

Code Description

ICD-10 C71.3 is a billable code used to indicate a diagnosis of malignant neoplasm of parietal lobe.

Key Diagnostic Point:

C71.3 refers to a malignant neoplasm located in the parietal lobe of the brain, which is part of the central nervous system (CNS). This type of tumor can arise from glial cells, meningeal tissue, or other neural components. Symptoms may include seizures, sensory deficits, and cognitive changes, depending on the tumor's size and location. Imaging studies, particularly MRI, are crucial for diagnosis, revealing the tumor's size, location, and any associated edema. Molecular markers, such as IDH1/2 mutations and 1p/19q co-deletion status, can provide prognostic information and guide treatment decisions. Treatment typically involves a multidisciplinary approach, including surgical resection, radiation therapy, and chemotherapy. The prognosis varies significantly based on tumor type, grade, and patient factors, making early detection and accurate coding essential for optimal management.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Variability in tumor histology and grading
  • Need for precise localization in imaging studies
  • Potential for multiple treatment modalities
  • Differentiation from benign lesions

Audit Risk Factors

  • Inadequate documentation of imaging findings
  • Failure to document molecular marker testing
  • Misclassification of tumor grade
  • Lack of clarity in treatment plans

Specialty Focus

Medical Specialties

Neurosurgery

Documentation Requirements

Detailed operative reports, imaging studies, and pathology results.

Common Clinical Scenarios

Surgical resection of a parietal lobe tumor, post-operative follow-up.

Billing Considerations

Ensure accurate documentation of tumor size, location, and histology.

Oncology

Documentation Requirements

Comprehensive treatment plans, including chemotherapy and radiation therapy details.

Common Clinical Scenarios

Management of malignant CNS tumors, including chemotherapy regimens.

Billing Considerations

Document molecular profiling and response to treatment.

Coding Guidelines

Inclusion Criteria

Use C71.3 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the tumor's location, histology, and any associated conditions
  • Include relevant imaging and pathology reports to support the diagnosis

Exclusion Criteria

Do NOT use C71.3 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

61510CPT Code

Craniotomy, excision of brain tumor

Clinical Scenario

Used during surgical resection of a malignant parietal lobe tumor.

Documentation Requirements

Operative report detailing the procedure and findings.

Specialty Considerations

Neurosurgeons must document tumor characteristics and surgical approach.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of CNS malignancies, improving data accuracy and enhancing the ability to track treatment outcomes and epidemiological trends.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of CNS malignancies, improving data accuracy and enhancing the ability to track treatment outcomes and epidemiological trends.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of CNS malignancies, improving data accuracy and enhancing the ability to track treatment outcomes and epidemiological trends.

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 imaging studies are necessary for diagnosing C71.3?

MRI is the preferred imaging modality for diagnosing malignant neoplasms of the parietal lobe, as it provides detailed images of brain structures and can identify tumor size and associated edema.