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ICD-10 Guide
DiagnosesHistory Of Brain Aneurysm

History Of Brain Aneurysm

ICD-10 Coding for History of Brain Aneurysm(Z86.79, Z82.49)

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

Diagnosis Overview

What is History Of Brain Aneurysm?
Essential facts and insights about History of Brain Aneurysm

Key Clinical Considerations:

  • History of subarachnoid hemorrhage or intracranial hemorrhage
  • Neurological deficits or symptoms such as headaches, seizures, or visual disturbances
  • Imaging findings indicating previous aneurysm presence or treatment

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient's medical history including previous aneurysm diagnosis and treatment details
  • Specific terminology such as 'ruptured' or 'unruptured' aneurysm
  • Examples of documentation include operative reports, imaging results, and follow-up notes

Coding Guidelines

Usage Guidelines & Examples

  • Follow usage guidelines for distinguishing between ruptured and unruptured aneurysms.
  • Common errors include misclassifying the type of aneurysm or omitting treatment history.

Code Exclusions

Important Exclusions

  • Conditions such as cerebral arteriovenous malformations (AVMs) or other vascular anomalies.
  • Alternative codes for related conditions should not be used unless specified.

Related ICD-10 Codes

Primary Codes
I67.1
Cerebral aneurysm, unspecified
I72.0
Aneurysm of cerebral artery
Ancillary Codes
Z09
Differential Codes
I67.1
I67.1
for active, nonruptured cerebral aneurysms.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Neurosurgery

Specialty Applications

  • Patients with a history of brain aneurysms, particularly those who have undergone surgical intervention.
  • Clinical settings include neurosurgery clinics, emergency departments, and outpatient follow-up care.

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

What are the documentation requirements?

Document the history of the aneurysm, treatment details, and any ongoing symptoms.

What are the billing considerations?

Ensure accurate coding based on the type of aneurysm and any associated complications.