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

Complete ICD-10-CM coding and documentation guide for ADHD Unspecified. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Attention Deficit Hyperactivity Disorder UnspecifiedADHD NOS

Related ICD-10 Code Ranges

Complete code families applicable to ADHD Unspecified

F90Primary Range

Behavioral and emotional disorders with onset usually occurring in childhood and adolescence

This range includes all ADHD-related codes, with F90.9 specifically for unspecified ADHD.

Key Information: ICD-10 code for ADHD unspecified

Essential facts and insights about ADHD Unspecified

The ICD-10 code for ADHD unspecified is F90.9, used when symptoms are present but no specific subtype is determined.

Primary ICD-10-CM Code for adhd unspecified

Attention-deficit hyperactivity disorder, unspecified type
Billable Code

Decision Criteria

clinical Criteria

  • Symptoms present in multiple settings and persisting for at least 6 months.

coding Criteria

  • No specific subtype can be determined from available information.

documentation Criteria

  • Avoid terms like 'rule out' or 'working diagnosis'.

Applicable To

  • ADHD NOS

Excludes

Clinical Validation Requirements

  • Symptoms present in multiple settings
  • Symptoms persisting for at least 6 months
  • No specific subtype determined

Code-Specific Risks

  • Using F90.9 when a specific subtype is indicated
  • Lack of documentation for symptoms in multiple settings

Coding Notes

  • Ensure documentation supports the use of an unspecified code by detailing symptoms and settings.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Encounter for routine child health examination with abnormal findings

Z00.121
Use alongside F90.9 for routine ADHD monitoring.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Attention-deficit hyperactivity disorder, predominantly inattentive type

F90.0
Use F90.0 when inattention symptoms are predominant.

Attention-deficit hyperactivity disorder, predominantly hyperactive-impulsive type

F90.1
Use F90.1 when hyperactivity-impulsivity symptoms are predominant.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting ADHD Unspecified to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code F90.9.

Impact

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

Mitigation Strategy

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

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 Strategy

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

Impact

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

Mitigation Strategy

Ensure detailed documentation of symptoms and settings.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for ADHD Unspecified, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for ADHD Unspecified

Use these documentation templates to ensure complete and accurate documentation for ADHD Unspecified. These templates include all required elements for proper coding and billing.

Pediatric ADHD evaluation

Specialty: Pediatrics

Required Elements

  • Symptom checklist
  • Duration and settings of symptoms
  • Functional impact

Example Documentation

Patient exhibits 6/9 inattentive symptoms across school and home settings for 8 months.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient has ADHD symptoms.
Good Documentation Example
Patient meets DSM-5 criteria with 6 inattentive symptoms across school and home settings for 8 months.
Explanation
The good example provides specific symptom counts, settings, and duration, supporting the use of F90.9.

Need help with ICD-10 coding for ADHD Unspecified? Ask your questions below.

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