Z04.6 Encounter for general psychiatric examination, requested by authority
The ICD-10-CM code for Encounter for general psychiatric examination, requested by authority is Z04.6 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- Z00-Z13: Persons encountering health services for examinations (Z00-Z13)
- Category Z04
- 16 codes (12 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to Z04.6:
- Admission (for) › mental health evaluation › requested by authority
- Evaluation (for) (of) › mental health (status) › requested by authority
- Admission (for) › psychiatric examination (general) › requested by authority
- Examination (for) (following) (general) (of) (routine) › psychiatric NEC › requested by authority
- Admission (for) › examination at health care facility (adult) › psychiatric (general) › requested by authority
U.S. Hospital Utilization
- An estimated 915 U.S. inpatient stays in 2023 included Z04.6 among the documented diagnoses.
- 100 stays listed it as the principal diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
Used with any code in range A00.0-T88.9, Z00-Z991) Used with any code in the range of A00.0-T88.9, Z00-Z99 An external cause code may be used with any code in the range of A00.0-T88.9, Z00-Z99, classification that represents a health condition due to an external cause. Though they are most applicable to injuries, they are also valid for use with such things as infections or diseases due to an external source, and other health conditions, such as a heart attack that occurs during strenuous physical activity.
Additional codes with observation code (fragment)observation code, but only if they are unrelated to the suspected condition being observed.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026