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ICD-10 Guide
DiagnosesAgitation

Agitation

ICD-10 Coding for Agitation(R45.1, F02.81)

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

Diagnosis Overview

What is Agitation?
Essential facts and insights about Agitation

Key Clinical Considerations:

  • Presence of excessive motor activity or restlessness, often accompanied by emotional distress.
  • No specific laboratory findings; however, underlying conditions may be assessed through blood tests or other diagnostics.
  • Physical examination may reveal signs of agitation such as pacing, fidgeting, or inability to sit still.
  • Imaging studies are not typically required but may be used to rule out neurological conditions contributing to agitation.
  • Severity can be assessed based on the impact on daily functioning and the presence of associated symptoms such as anxiety or aggression.

Clinical Information

Clinical Criteria & Documentation Requirements

  • Document the patient's presenting symptoms, duration, and context of agitation.
  • Use specific terminology such as 'agitated state', 'restlessness', or 'emotional lability'.
  • Examples include: 'Patient exhibits signs of agitation with increased motor activity and verbal outbursts.'
  • Medical necessity must be established through documentation of the impact of agitation on the patient's health and functioning.
  • Quality measures may include assessments of agitation severity and response to treatment.

Coding Guidelines

Usage Guidelines & Examples

  • Use R45.1 for non-specific agitation not attributed to a specific mental disorder; use F02.81 for agitation in the context of dementia.
  • Do not use R45.1 if agitation is a symptom of a diagnosed mental health disorder (e.g., schizophrenia).
  • R45.1 is distinct from codes for anxiety disorders (F41) and mood disorders (F30-F39) which may also present with agitation.
  • Common errors include misclassifying agitation as a primary diagnosis when it is a symptom of another condition.
  • In complex cases, consider the primary diagnosis and whether agitation is a secondary symptom.

Code Exclusions

Important Exclusions

  • Excludes agitation due to substance intoxication or withdrawal (F10-F19).
  • Alternative codes for excluded conditions include F10.129 for alcohol-related agitation.
  • Conditions are excluded to ensure accurate representation of the underlying cause of agitation.
  • Common mistakes include using R45.1 for agitation due to a known psychiatric disorder.
  • Related but distinct conditions include delirium (F05) and psychotic disorders (F20-F29).

Related ICD-10 Codes

Primary Codes
R45.1
Agitation
F02.81
Agitation in dementia
Ancillary Codes
Y04.0XA
Differential Codes
F02.81
F03.90

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Neurology

Specialty Applications

  • Applicable to patients with neurocognitive disorders, psychiatric conditions, or acute stress responses.
  • Patient populations include all ages, with particular prevalence in older adults with dementia.
  • Clinical settings include inpatient psychiatric units, emergency departments, and outpatient mental health clinics.
  • Specialty-specific applications are relevant in neurology, psychiatry, and geriatric medicine.
  • Treatment contexts include acute management in emergency settings and ongoing management in outpatient 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

Template 1

Template: 'Patient diagnosed with agitation based on excessive motor activity and emotional distress.'

Template 2

Template: 'Clinical presentation consistent with agitation including restlessness and verbal outbursts.'

Template 3

Template: 'Diagnostic criteria for agitation met as evidenced by increased motor activity and anxiety.'

Template 4

Template: 'Treatment plan initiated for agitation with pharmacological and non-pharmacological interventions.'

Template 5

Template: 'Follow-up care for agitation including monitoring of symptoms and response to treatment.'

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 documentation is required for this diagnosis?

Document the patient's symptoms, duration, and any precipitating factors.

How does this differ from similar diagnoses?

Agitation is a symptom, while conditions like anxiety or mood disorders are primary diagnoses.

What are common billing considerations?

Ensure medical necessity is documented to support claims for treatment of agitation.

What procedures are typically associated?

CPT codes for psychiatric evaluations and management may be relevant.

Are there any quality reporting implications?

Quality measures may include tracking the effectiveness of interventions for agitation.