ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesR44.2

R44.2

Other hallucinations

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 R44.2 is a billable code used to indicate a diagnosis of other hallucinations.

Key Diagnostic Point:

Hallucinations are perceptual experiences that occur without an external stimulus, leading individuals to perceive things that are not present. The ICD-10 code R44.2 encompasses hallucinations that do not fit into more specific categories, such as auditory or visual hallucinations. Symptoms may include hearing voices, seeing objects or people that are not there, or feeling sensations on the skin without any physical cause. These experiences can be distressing and may significantly impact a person's daily functioning. Common causes of other hallucinations include psychiatric disorders such as schizophrenia, severe mood disorders, substance use, neurological conditions like dementia or Parkinson's disease, and sensory deprivation. The diagnostic approach typically involves a thorough clinical assessment, including a detailed patient history, mental status examination, and possibly neuroimaging or laboratory tests to rule out underlying medical conditions. Accurate diagnosis is crucial, as hallucinations can indicate serious underlying issues that require immediate intervention.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential underlying causes
  • Overlap with other psychiatric diagnoses
  • Need for comprehensive patient history
  • Potential for misdiagnosis

Audit Risk Factors

  • Inadequate documentation of hallucination type
  • Failure to specify underlying conditions
  • Misuse of code for non-hallucinatory symptoms
  • Lack of supporting clinical evidence

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Documentation should include a detailed history of the hallucinations, associated symptoms, and any relevant medical history.

Common Clinical Scenarios

Patients presenting with new-onset hallucinations due to metabolic disturbances or medication side effects.

Billing Considerations

Consideration of comorbid conditions such as diabetes or renal failure that may contribute to altered mental status.

Emergency Medicine

Documentation Requirements

Acute care documentation must capture the onset, duration, and context of hallucinations, along with vital signs and mental status.

Common Clinical Scenarios

Patients presenting with acute psychosis or altered mental status due to substance use or withdrawal.

Billing Considerations

Rapid assessment and stabilization of the patient, including consideration of potential life-threatening causes.

Coding Guidelines

Inclusion Criteria

Use R44.2 When
  • Follow official coding guidelines that emphasize the need for specificity in documentation and the importance of linking hallucinations to underlying conditions when applicable

Exclusion Criteria

Do NOT use R44.2 When
No specific exclusions found.

Related CPT Codes

99214CPT Code

Established patient office visit, level 4

Clinical Scenario

Used when evaluating a patient with hallucinations in an outpatient setting.

Documentation Requirements

Document the patient's history, examination findings, and any treatment plans.

Specialty Considerations

Ensure that the visit is comprehensive to support the level of service billed.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of hallucinations, improving the ability to capture the complexity of these symptoms and their underlying causes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of hallucinations, improving the ability to capture the complexity of these symptoms and their underlying causes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of hallucinations, improving the ability to capture the complexity of these symptoms and their underlying causes.

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 causes of other hallucinations?

Common causes include psychiatric disorders, neurological conditions, substance use, and sensory deprivation. Each case requires careful evaluation to determine the underlying cause.