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v1.0.0
ICD-10 Guide
ICD-10 CodesF51.0

F51.0

Billable

Insomnia not due to a substance or known physiological condition

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

Code Description

ICD-10 F51.0 is a billable code used to indicate a diagnosis of insomnia not due to a substance or known physiological condition.

Key Diagnostic Point:

F51.0 refers to insomnia that is not attributable to substance use or any identifiable physiological condition. This type of insomnia can be classified as primary insomnia, which is characterized by difficulty falling asleep, staying asleep, or waking up too early without the ability to return to sleep. It can significantly impact an individual's daily functioning and quality of life. Insomnia can be associated with various psychological conditions, including anxiety disorders, depression, and stress-related disorders. It may also be linked to behavioral syndromes, such as those seen in eating disorders where irregular eating patterns disrupt normal sleep cycles. The diagnosis of F51.0 requires careful assessment to rule out other potential causes of insomnia, including medical conditions and substance use, which can complicate treatment and management. Treatment may involve cognitive-behavioral therapy, lifestyle modifications, and, in some cases, pharmacotherapy, although the latter should be approached cautiously to avoid dependency.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between primary and secondary insomnia
  • Need for comprehensive patient history to rule out other conditions
  • Potential overlap with other mental health disorders
  • Documentation of sleep patterns and behaviors

Audit Risk Factors

  • Inadequate documentation of sleep history
  • Failure to rule out substance use or physiological conditions
  • Misclassification of insomnia type
  • Lack of evidence for treatment efficacy

Specialty Focus

Medical Specialties

Psychiatry

Documentation Requirements

Detailed patient history, including sleep patterns, psychological assessments, and any co-existing mental health conditions.

Common Clinical Scenarios

Patients presenting with anxiety or depression who report sleep disturbances.

Billing Considerations

Consideration of comorbid conditions and their impact on sleep quality.

Sleep Medicine

Documentation Requirements

Polysomnography results, sleep diaries, and comprehensive evaluations of sleep disorders.

Common Clinical Scenarios

Patients undergoing sleep studies for suspected insomnia or other sleep disorders.

Billing Considerations

Integration of behavioral interventions and sleep hygiene education.

Coding Guidelines

Inclusion Criteria

Use F51.0 When
  • According to ICD
  • 10 guidelines, F51
  • 0 should be used when insomnia is not due to a substance or known physiological condition
  • It is essential to document the patient's sleep history and any psychological factors contributing to the insomnia

Exclusion Criteria

Do NOT use F51.0 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99406CPT Code

Smoking and tobacco use cessation counseling visit

Clinical Scenario

Used when insomnia is related to smoking cessation efforts.

Documentation Requirements

Document the patient's smoking history and cessation attempts.

Specialty Considerations

Consider the impact of nicotine withdrawal on sleep patterns.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of insomnia, enabling better tracking of sleep disorders and their impact on mental health. This specificity aids in research and treatment planning.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of insomnia, enabling better tracking of sleep disorders and their impact on mental health. This specificity aids in research and treatment planning.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of insomnia, enabling better tracking of sleep disorders and their impact on mental health. This specificity aids in research and treatment planning.

Resources

Clinical References

  • •
    American Academy of Sleep Medicine

Coding & Billing References

  • •
    American Academy of Sleep Medicine

Frequently Asked Questions

What are the primary causes of F51.0?

F51.0 is primarily caused by psychological factors such as stress, anxiety, and depression, rather than by substances or physiological conditions.