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ICD-10 Coding for ADHD Unspecified(F90.9, F90.0, F90.1)

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Learn about ADHD unspecified (ICD-10 code F90.9), including coding guidelines, documentation requirements, and common pitfalls.

Also known as:
Attention Deficit Hyperactivity Disorder UnspecifiedADHD NOS
Related ICD-10 Code Ranges

Complete code families applicable to ADHD Unspecified

F01-F99Primary Range

Mental, Behavioral and Neurodevelopmental disorders

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Primary ICD-10-CM Codes
Attention-deficit hyperactivity disorder, unspecified type
F90.9Billable
Differential Codes

Alternative codes to consider when ruling out similar conditions

Attention-deficit hyperactivity disorder, predominantly inattentive typeF90.0
Attention-deficit hyperactivity disorder, predominantly hyperactive-impulsive typeF90.1

Documentation & Coding Risks

Avoid these common issues when documenting ADHD Unspecified.

Lack of documentation for symptom duration

Impact

Clinical: May lead to misdiagnosis or inappropriate treatment., Regulatory: Non-compliance with coding guidelines., Financial: Potential for denied claims or reduced reimbursement.

Mitigation

Ensure documentation includes symptom duration., Use standardized assessment tools.

Using F90.9 when a specific subtype is indicated

Impact

Reimbursement: May lead to lower reimbursement rates., Compliance: Could trigger audits for inappropriate use of unspecified codes., Data Quality: Affects the accuracy of patient records and data analytics.

Mitigation

Ensure documentation specifies symptoms that align with a specific subtype code.

Use of unspecified codes

Impact

Frequent use of unspecified codes without supporting documentation can trigger audits.

Mitigation

Ensure detailed documentation of symptoms and settings.

Pediatric ADHD evaluation

Document ADHD Unspecified in one step.

Frequently Asked Questions

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with F90.9.