ICD-10 Guide

Inattention

ICD-10 Coding for Inattention(F90.0)

PRIMARY SPECIALTYPsychiatry

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Inattention?

Essential facts and insights about Inattention

Key Clinical Considerations:

Persistent pattern of inattention that interferes with functioning or development
Symptoms include difficulty sustaining attention, careless mistakes, and forgetfulness
No specific physical exam findings; diagnosis based on behavioral assessment

Clinical Information

Clinical Criteria & Documentation Requirements

Detailed history of symptoms and their impact on daily life
Use of terms like 'inattention', 'ADHD', or 'Attention Deficit Disorder'
Examples include patient history, symptom checklists, and behavioral observations

Coding Guidelines

Usage Guidelines & Examples

Usage guidelines: Differentiate between inattentive and hyperactive presentations for accurate coding.
Common errors: Misclassifying ADHD presentations or failing to document symptom duration.

Code Exclusions

Important Exclusions

Excludes conditions such as learning disorders or mood disorders that may mimic inattention
Alternative codes may include F90.0 for ADHD, but specify presentation type.

Specialty Focus

Primary Specialty

Psychiatry

Specialty Applications

Children and adolescents, but can also affect adults
Clinical settings include outpatient psychiatry, pediatric clinics, and educational assessments

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?

Comprehensive history, symptom duration, and impact on functioning are required.

Billing considerations?

Ensure correct ICD-10 code is used based on presentation; check for insurance coverage specifics.

Inattention

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

Documentation requirements?

Billing considerations?

Inattention

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

Documentation requirements?

Billing considerations?