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v1.0.0
ICD-10 Guide
DiagnosesIntracranial Hypertension

Intracranial Hypertension

ICD-10 Coding for Intracranial Hypertension(G93.2, I16.9)

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

Diagnosis Overview

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

Key Clinical Considerations:

  • Headache, often worsening in the morning or with straining
  • Visual disturbances, such as blurred vision or double vision
  • Nausea and vomiting
  • Papilledema observed on fundoscopic examination
  • Altered mental status in severe cases

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history including onset and duration of symptoms
  • Results of neuroimaging studies (e.g., MRI, CT) showing ventricular size
  • Documentation of lumbar puncture results if performed
  • Specific mention of any secondary causes ruled out

Coding Guidelines

Usage Guidelines & Examples

  • Usage guidelines: Use G93.2 for unspecified intracranial hypertension.
  • Common errors: Confusing intracranial hypertension with other headache disorders.

Code Exclusions

Important Exclusions

  • Excluded conditions: Intracranial hypotension, tumors causing increased pressure.
  • Alternative codes: Consider G93.1 for conditions related to low pressure.

Related ICD-10 Codes

Primary Codes
G93.2
Intracranial hypertension, unspecified
G93.1
Intracranial hypotension
Ancillary Codes
H47.1
R51
Differential Codes
G96.1
I67.1

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Neurology

Specialty Applications

  • Patient populations: Adults and children with symptoms of increased intracranial pressure.
  • Clinical settings: Neurology clinics, emergency departments, and inpatient 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

What are the documentation requirements?

Document all clinical findings, imaging results, and treatment plans.

What are the billing considerations?

Ensure accurate coding based on clinical documentation and any associated conditions.