Mental, Behavioral and Neurodevelopmental disorders
This chapter covers ICD-10-CM codes in the range F01-F99 for mental, behavioral and neurodevelopmental disorders. Covers mental, behavioral, and neurodevelopmental disorders including dementia, substance use, schizophrenia, and mood disorders.
Chapter Overview
Key Statistics
- •Contains 11 categories and 71 total codes
- •Includes 66 billable codes and 5 non-billable codes
- •Chapter range: F01-F99
Clinical Relevance
Critical for psychiatric and behavioral health documentation. Used across all medical specialties for mental health comorbidities and substance use disorders.
Documentation Requirements
Requires clinical assessment, severity indicators, functional impairment level, and substance use patterns. DSM-5 correlation is essential.
Special Considerations
Substance use coding includes use, abuse, and dependence categories. Requires careful documentation of withdrawal states and complications.
Categories in this Chapter
Mental disorders due to known physiological conditions
Mental and behavioral disorders due to psychoactive substance use
Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders
Mood [affective] disorders
Anxiety, dissociative, stress-related, somatoform and other nonpsychotic mental disorders
Behavioral syndromes associated with physiological disturbances and physical factors
Disorders of adult personality and behavior
Intellectual disabilities
Pervasive and specific developmental disorders
Behavioral and emotional disorders with onset usually occurring in childhood and adolescence
Unspecified mental disorder
Chapter-Specific Coding Guidelines
General Guidelines for Mental, Behavioral and Neurodevelopmental disorders:
- Follow standard ICD-10-CM coding principles for mental, behavioral and neurodevelopmental disorders
- Document the most specific diagnosis supported by the medical record
- Use additional codes for manifestations, complications, or associated conditions
- Ensure proper sequencing based on the reason for the encounter
Documentation Requirements:
- •Specific condition or disease process
- •Acute versus chronic status when applicable
- •Severity or stage when documented
- •Associated symptoms or complications
- •Treatment response and current status
Sequencing Rules:
- Principal diagnosis should reflect the main reason for the encounter
- Sequence complications according to treatment focus
- Use appropriate combination codes when available
- Follow chapter-specific sequencing guidelines
When to Use:
- ✓For conditions classified in the F01-F99 range
- ✓When the condition is the primary focus of care
- ✓During active treatment or monitoring
- ✓For documented complications of the condition
When NOT to Use:
- ✗For personal history without current manifestations
- ✗During screening encounters without findings
- ✗For conditions better classified elsewhere
- ✗When condition is ruled out or suspected only
Special Considerations:
- ⚠Review chapter-specific coding guidelines
- ⚠Consider combination codes before multiple codes
- ⚠Document functional impact when relevant
- ⚠Use external cause codes when applicable
Version Updates
The 2025 ICD-10-CM updates include refinements to mental, behavioral and neurodevelopmental disorders coding for improved specificity and clinical relevance.
Recent Updates:
Enhanced Mental, Behavioral and Neurodevelopmental disorders Specificity
Updated codes within F01-F99 for improved clinical documentation
Impact: Better alignment with clinical practice and quality reporting
Implementation Guidance:
- •Review all mental, behavioral and neurodevelopmental disorders coding practices
- •Update documentation templates as needed
- •Train coding staff on any new requirements
- •Implement quality checks for accuracy
Upcoming Changes:
- →Potential enhancements to mental, behavioral and neurodevelopmental disorders codes in future updates
- →Continued alignment with clinical practice evolution
Related Resources
Key resources for mental, behavioral and neurodevelopmental disorders coding and clinical documentation.
Official Documentation:
Related Chapters:
Tools and References:
Frequently Asked Questions
What are the key considerations when coding mental, behavioral and neurodevelopmental disorders?
Focus on specific diagnosis documentation, proper sequencing, and use of additional codes for complications or manifestations related to mental, behavioral and neurodevelopmental disorders.
How do I determine the most appropriate code within this chapter?
Review the medical documentation for the most specific diagnosis, check for combination codes, and follow the ICD-10-CM guidelines for this chapter.
When should I use additional codes?
Use additional codes for manifestations, complications, external causes, or other conditions that affect patient care during the encounter.