What is the ICD-10 code for ADHD without hyperactivity?

The International Classification of Diseases, 10th Edition, or ICD-10, is a standardized system used worldwide for classifying and coding various medical conditions and diseases. One of the conditions frequently encountered in clinical practice is Attention Deficit Hyperactivity Disorder (ADHD). However, it’s essential to distinguish between different subtypes of ADHD when coding for accurate medical billing and record-keeping. One such subtype is ADHD without hyperactivity, often referred to as inattentive ADHD or simply ADD (Attention Deficit Disorder). In the ICD-10 coding system, this condition has a specific code that healthcare professionals use for documentation and insurance purposes.

The ICD-10 code for ADHD without hyperactivity is F90.0. To understand this code better, let’s break it down:

1. F – The letter “F” indicates that this code falls under the category of Mental and Behavioral Disorders. This is the primary category for various psychiatric and psychological conditions.
2. 90 – The code “90” is the category code for Hyperkinetic Disorders. Hyperkinetic disorders encompass a range of conditions characterized by disturbances of activity and attention, including hyperactivity, impulsivity, and inattention. It serves as the broader category for all types of ADHD in the ICD-10.
3. 0 – The number “0” after the decimal point is used to specify subtypes or variations within the broader category. In this case, F90.0 denotes “Hyperkinetic Disorder, Predominantly Inattentive Type.” This is the specific code for ADHD without hyperactivity.

It’s important to note that in the ICD-10 system, ADHD is categorized into three subtypes:

• F90.0 – Hyperkinetic Disorder, Predominantly Inattentive Type (ADHD without hyperactivity)
• F90.1 – Hyperkinetic Disorder, Predominantly Hyperactive Type (ADHD with hyperactivity)
• F90.8 – Other Hyperkinetic Disorders (used for cases that don’t fit the above two categories precisely)

Using the correct ICD-10 code is crucial for healthcare providers, insurance companies, and medical researchers. It ensures that the condition is accurately documented and billed, which in turn helps in tracking prevalence rates, treatment outcomes, and resource allocation for specific medical conditions.

ADHD without hyperactivity, coded as F90.0, is characterized by symptoms primarily related to inattention rather than hyperactivity or impulsivity. Individuals with this subtype often struggle with focusing on tasks, following instructions, organizing activities, and paying attention to details. They may appear forgetful or easily distracted. While it shares some common features with other ADHD subtypes, the absence of significant hyperactivity sets it apart.

Clinicians and diagnosticians use standardized diagnostic criteria, such as those outlined in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), to identify and diagnose ADHD subtypes. These criteria help ensure consistent and accurate diagnosis across different healthcare settings.