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v1.0.0
ICD-10 Guide
DiagnosesIntracranial Tumor

Intracranial Tumor

ICD-10 Coding for Intracranial Tumor(C71.0, D33.0)

PRIMARY SPECIALTYNeurology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Intracranial Tumor?
Essential facts and insights about Intracranial Tumor

Key Clinical Considerations:

  • Headaches, seizures, neurological deficits, cognitive changes
  • MRI or CT scans showing mass effect, edema, or lesions
  • Neurological examination revealing focal deficits, altered mental status

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history, imaging results, neurological assessment
  • ICD-10-CM codes for specific tumor types (e.g., C71 for brain tumors)
  • Examples: 'MRI shows a 3 cm mass in the left frontal lobe consistent with glioma.'

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for coding primary vs. secondary tumors.
  • Common errors include misclassifying tumor types or neglecting to document symptoms.

Code Exclusions

Important Exclusions

  • Benign tumors (e.g., meningiomas) unless specified
  • Alternative codes for metastatic brain tumors

Related ICD-10 Codes

Primary Codes
C71.0
Malignant neoplasm of the brain, unspecified
C71.1
Malignant neoplasm of the frontal lobe
C71.2
Malignant neoplasm of the temporal lobe
Ancillary Codes
C79.31
Differential Codes
D33.0
C71.0

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Neurology

Specialty Applications

  • Adults and children with suspected or diagnosed intracranial tumors
  • Neurology clinics, hospitals, and outpatient settings

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Include detailed imaging reports and clinical findings.

Billing considerations?

Ensure correct coding based on tumor type and location.