Z04
⚠ Non-billable (Header)Encounter for examination and observation for other reasons
Factors influencing health status and contact with health services (Z00-Z99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
✅ Includes
- • encounter for examination for medicolegal reasons
- • This category is to be used when a person without a diagnosis is suspected of having an abnormal condition, without signs or symptoms, which requires study, but after examination and observation, is ruled-out. This category is also for use for administrative and legal observation status.
Child Codes (8)
Z04.1Encounter for examination and observation following transport accidentZ04.2Encounter for examination and observation following work accidentZ04.3Encounter for examination and observation following other accidentZ04.4Encounter for examination and observation following alleged rapeZ04.6Encounter for general psychiatric examination, requested by authorityZ04.7Encounter for examination and observation following alleged physical abuseZ04.8Encounter for examination and observation for other specified reasonsZ04.9Encounter for examination and observation for unspecified reason
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CodeZ04
BillableNo — Header code
CategoryFactors influencing health status and contact with health services (Z00-Z99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes8
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)