Overview

ICD10 code F90.1 refers to Attention-deficit hyperactivity disorder, predominantly inattentive type. This presentation focuses on attention difficulties without significant hyperactivity-impulsivity.

Diagnostic Criteria

For inattentive type ADHD, patients must show:

Six or more symptoms of inattention
Fewer than six symptoms of hyperactivity-impulsivity
Symptoms present for at least 6 months
Symptoms present in multiple settings
Significant impact on functioning

Primary Symptoms

Makes careless mistakes
Difficulty maintaining attention
Problems following instructions
Difficulty with organization
Avoids tasks requiring sustained mental effort
Loses important items
Easily distracted by external stimuli
Forgetful in daily activities
Appears daydreamy or "spacey"

Distinguishing Features

Less disruptive behavior than other types
May be overlooked in childhood
More common in females
Often impacts academic performance
Can affect workplace efficiency

ICD10 Code Usage

Code F90.1 is specifically used when:

Inattention is the primary concern
Minimal hyperactive-impulsive symptoms
Documentation for accommodations
Treatment planning

Related Codes

Treatment Approaches

Medication management
Cognitive behavioral therapy
Organizational skills training
Academic accommodations
Study skills development
Time management strategies

FAQs

Q1: Why is inattentive type sometimes missed?
A: Because these individuals often don't display disruptive behaviors, their struggles may be less obvious and attributed to other causes.

Q2: Can adults be diagnosed with inattentive type ADHD?
A: Yes, many adults are diagnosed later in life, often after struggling with organization and attention in work or education.