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ICD-10 Guide
ICD-10 CodesChapter 5: Mental, Behavioral and Neurodevelopmental disordersF89

F89

Billable

Unspecified disorder of psychological development

Chapter 5:Mental, Behavioral and Neurodevelopmental disorders

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 F89 is a billable code used to indicate a diagnosis of unspecified disorder of psychological development.

Key Diagnostic Point:

F89 is used to classify unspecified disorders of psychological development, which can manifest as a range of neurodevelopmental disorders. These disorders may include difficulties in social interaction, communication, and learning, which are often seen in conditions such as autism spectrum disorder (ASD), communication disorders, and learning disabilities. The term 'unspecified' indicates that the clinician has determined that a developmental disorder is present, but has not specified the exact nature or type of the disorder. This may occur when the symptoms do not fully meet the criteria for a specific diagnosis or when there is insufficient information to make a more precise diagnosis. Clinicians may observe delays in language acquisition, challenges in social skills, or difficulties in academic performance. The lack of specificity can complicate treatment planning and may require further assessment to identify underlying issues. Accurate coding is essential for appropriate resource allocation and treatment strategies, as well as for understanding the prevalence and impact of developmental disorders in the population.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in symptom presentation among patients
  • Need for comprehensive clinical assessment to determine the nature of the disorder
  • Potential overlap with other neurodevelopmental disorders
  • Documentation requirements for unspecified conditions

Audit Risk Factors

  • Inadequate documentation supporting the unspecified diagnosis
  • Failure to provide evidence of developmental assessments
  • Misclassification of symptoms leading to incorrect coding
  • Lack of follow-up documentation to clarify the diagnosis

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed developmental history, including milestones and parental concerns.

Common Clinical Scenarios

Assessment of a child with delayed speech and social skills.

Billing Considerations

Consideration of family history and environmental factors affecting development.

Psychiatry

Documentation Requirements

Comprehensive psychological evaluation and diagnostic interviews.

Common Clinical Scenarios

Evaluation of a child presenting with behavioral issues and learning difficulties.

Billing Considerations

Differentiating between various psychological disorders that may present similarly.

Coding Guidelines

Inclusion Criteria

Use F89 When
  • According to ICD
  • 10 guidelines, F89 should be used when a developmental disorder is identified but not specified
  • Coders should ensure that the documentation supports the use of this code and that it is not used when a more specific diagnosis can be assigned

Exclusion Criteria

Do NOT use F89 When
  • Exclusion criteria include conditions that are better defined under other codes

Related CPT Codes

96110CPT Code

Developmental screening, with interpretation and report

Clinical Scenario

Used when assessing a child for developmental delays.

Documentation Requirements

Documentation of the screening process and results.

Specialty Considerations

Pediatricians should ensure that developmental milestones are clearly documented.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of developmental disorders, but F89 remains important for cases where a definitive diagnosis cannot be established. It emphasizes the need for thorough documentation and assessment.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of developmental disorders, but F89 remains important for cases where a definitive diagnosis cannot be established. It emphasizes the need for thorough documentation and assessment.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of developmental disorders, but F89 remains important for cases where a definitive diagnosis cannot be established. It emphasizes the need for thorough documentation and assessment.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

When should I use F89 instead of a more specific code?

F89 should be used when a developmental disorder is identified but the specific nature of the disorder cannot be determined at the time of coding. It is important to ensure that documentation supports the use of this unspecified code.