2026 ICD-10-CM Diagnosis Code Z04.6Encounter for general psychiatric examination, requested by authority

ICD-10-CM Codes›Z00–Z99›Z00-Z13›Z04

ICD-10-CM Z04.6
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z04.6 is a billable ICD-10-CM diagnosis code for encounter for general psychiatric examination, requested by authority. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Encounter for mental health conditions.

Code Identity

ICD-10-CM Code
Z04.6
Billable Status
Yes — Valid for Submission
Code Describes
Encounter for general psychiatric examination, requested by authority
Short Description
Encntr for general psychiatric exam, requested by authority
Parent Code
Z04
Encounter for examination and observation for other reasons

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ00-Z13Persons encountering health services for examinations
CategoryZ04Encounter for examination and observation for other reasons
This CodeZ04.6Encounter for general psychiatric examination, requested by authority

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Admission(for)
      • examination at health care facility (adult)
        • psychiatric (general)
          • requested by authority
    • Admission(for)
      • mental health evaluation
        • requested by authority
    • Admission(for)
      • psychiatric examination (general)
        • requested by authority
    • Evaluation(for) (of)
      • mental health (status)
        • requested by authority
    • Examination(for) (following) (general) (of) (routine)
      • psychiatric NEC
        • requested by authority

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC007
Encounter for mental health conditions
Default principal diagnosis: inpatient Yes · outpatient Yes

Convert Z04.6 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
V70.1 Psych exam-authority req
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z04.6Overview

Is Z04.6 (Encounter for examination and observation for other reasons) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report encounter for general psychiatric examination, requested by authority on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of Z04.6?

Under the General Equivalence Mappings, encounter for general psychiatric examination, requested by authority converts to ICD-9-CM V70.1 (psych exam-authority req). The mapping is a direct match.