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v1.0.0
ICD-10 Guide
ICD-10 CodesZ04.6

Z04.6

Encounter for general psychiatric examination, requested by authority

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/12/2025

Code Description

ICD-10 Z04.6 is a billable code used to indicate a diagnosis of encounter for general psychiatric examination, requested by authority.

Key Diagnostic Point:

Z04.6 is used when an individual is referred for a general psychiatric examination at the request of an authority, such as a court or social services. This encounter is often influenced by social determinants of health, including socioeconomic status, access to healthcare, and community support systems. The examination may be part of a preventive strategy to assess mental health needs, identify potential risks, and ensure the individual receives appropriate care. It is crucial for healthcare providers to document the reasons for the referral, the authority requesting the examination, and any relevant social factors that may impact the individual's mental health. This code is essential for tracking mental health assessments in various settings, including outpatient clinics and community health programs, and plays a role in preventive care by identifying individuals who may benefit from further mental health services.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Need for detailed documentation of the authority's request
  • Variability in mental health assessment protocols
  • Potential overlap with other psychiatric codes
  • Importance of capturing social determinants influencing mental health

Audit Risk Factors

  • Inadequate documentation of the authority's request
  • Failure to link the examination to specific social determinants
  • Misuse of the code for routine psychiatric evaluations
  • Lack of clarity on the purpose of the examination

Specialty Focus

Medical Specialties

Primary Care

Documentation Requirements

Documentation should include the reason for the referral, any relevant medical history, and the results of the psychiatric examination.

Common Clinical Scenarios

Routine checkups where mental health assessments are requested by legal authorities or social services.

Billing Considerations

Consideration of social determinants such as housing stability, employment status, and access to mental health resources.

Public Health

Documentation Requirements

Documentation should focus on population health data, including the prevalence of mental health issues in specific demographics.

Common Clinical Scenarios

Epidemiological studies assessing mental health trends in communities, often initiated by public health authorities.

Billing Considerations

Tracking health status and outcomes related to social determinants of health.

Coding Guidelines

Inclusion Criteria

Use Z04.6 When
  • Z codes should be used when the encounter is not primarily for a diagnosis but for a specific reason, such as a psychiatric examination requested by an authority
  • Proper sequencing is essential, and payers may have specific requirements regarding documentation and justification for the use of Z codes

Exclusion Criteria

Do NOT use Z04.6 When
No specific exclusions found.

Related CPT Codes

90791CPT Code

Psychiatric diagnostic evaluation

Clinical Scenario

Used in conjunction with Z04.6 when a comprehensive psychiatric evaluation is performed.

Documentation Requirements

Documentation must include the reason for the evaluation, findings, and any recommendations.

Specialty Considerations

Primary care providers should ensure they understand the legal implications of the evaluation.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding, particularly for encounters like Z04.6, which require detailed documentation of the circumstances surrounding the psychiatric examination.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding, particularly for encounters like Z04.6, which require detailed documentation of the circumstances surrounding the psychiatric examination.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for greater specificity in coding, particularly for encounters like Z04.6, which require detailed documentation of the circumstances surrounding the psychiatric examination.

Resources

Clinical References

  • •
    CDC Mental Health Resources

Coding & Billing References

  • •
    CDC Mental Health Resources

Frequently Asked Questions

When should Z04.6 be used instead of other Z codes?

Z04.6 should be used specifically when a psychiatric examination is requested by an authority, distinguishing it from other Z codes that may pertain to voluntary evaluations or screenings.