The F90.0 diagnosis code, officially known as “Attention-deficit hyperactivity disorder, predominantly inattentive type,” is a critical component of the International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM). This code is used by healthcare professionals in the United States to classify and document cases of ADHD where inattention is the primary symptom presentation. Understanding the specifics of the F90.0 code is essential for accurate medical billing, record-keeping, and clinical diagnosis.
Decoding F90.0: Attention-Deficit Hyperactivity Disorder, Predominantly Inattentive Type
F90.0 is a billable/specific code within the ICD-10-CM system. This means it is precise enough to be used for reimbursement purposes when submitting medical claims. It clearly distinguishes a particular subtype of Attention-deficit/hyperactivity disorder (ADHD). The descriptor “predominantly inattentive type” is key. It indicates that the patient primarily exhibits symptoms related to inattention, such as:
- Difficulty sustaining attention in tasks or play
- Not seeming to listen when spoken to directly
- Not following through on instructions and failing to finish schoolwork, chores, or duties in the workplace
- Difficulty organizing tasks and activities
- Avoiding, disliking, or being reluctant to engage in tasks that require sustained mental effort
- Losing things necessary for tasks or activities
- Being easily distracted by extraneous stimuli
- Forgetfulness in daily activities
It’s important to note that while hyperactivity and impulsivity might be present to some degree, they are not the predominant features in individuals diagnosed with F90.0. This contrasts with other ADHD subtypes, such as predominantly hyperactive-impulsive type (F90.1) or combined type (F90.2).
F90.0 in the ICD-10-CM System: History and Context
The F90.0 code has been a part of the ICD-10-CM since 2016, with the code becoming effective on October 1, 2015. The current version, 2025 ICD-10-CM F90.0, became effective on October 1, 2024. This indicates the code’s established and ongoing relevance in the medical field. The consistent use of F90.0 across these years highlights the importance of accurately identifying and classifying inattentive ADHD.
Within the broader ICD-10-CM hierarchy, F90.0 falls under the category of “Attention-deficit hyperactivity disorders” (F90) which is itself within “Disorders usually first diagnosed in infancy, childhood and adolescence” (F90-F98) and further nested within “Mental, Behavioral and Neurodevelopmental disorders” (F01-F99). This placement provides crucial context for understanding F90.0 as a neurodevelopmental disorder affecting attention.
Synonyms and Related Terms for F90.0
Understanding the different ways F90.0 is referred to can be helpful. Approximate synonyms for F90.0 include:
- ADHD, inattentive
- ADHD, predominantly inattentive presentation
- Attention deficit disorder (ADD) – although outdated, still sometimes used colloquially
- Attention deficit hyperactivity disorder, predominantly inattentive type
These terms all essentially describe the same condition captured by the F90.0 diagnosis code. Using the correct and current terminology, like F90.0, is vital for professional medical communication and documentation.
Conclusion: The Significance of F90.0 in Diagnosing Inattentive ADHD
The F90.0 diagnosis code is a specific and billable classification within the ICD-10-CM for “Attention-deficit hyperactivity disorder, predominantly inattentive type.” It plays a crucial role in accurately diagnosing, documenting, and treating individuals who primarily present with inattentive symptoms of ADHD. For healthcare providers, medical coders, and anyone involved in medical documentation, a thorough understanding of F90.0 is paramount for ensuring correct coding practices and facilitating appropriate patient care.
