ICD-10-CM Z04: Encounter for examination and observation for other reasons

ICD-10-CM Diagnosis Code (2025)

Official Description for Z04

Encounter for examination and observation for other reasons

Coding Notes & Guidelines for Z04

Includes Notes
  • 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.
Excludes1: Not Coded Here

encounter for examination and observation following work accident (Z04.2)

Excludes1: Not Coded Here
  • confirmed case of adult physical abuse (T74.-)
  • encounter for examination and observation following alleged adult sexual abuse (Z04.41)
  • suspected case of adult physical abuse, not ruled out (T76.-)
Excludes1: Not Coded Here
  • confirmed case of child physical abuse (T74.-)
  • encounter for examination and observation following alleged child sexual abuse (Z04.42)
  • suspected case of child physical abuse, not ruled out (T76.-)
Inclusion Terms
  • Encounter for examination and observation of victim following alleged rape
  • Encounter for examination and observation of victim following alleged sexual abuse
Inclusion Terms
  • Suspected adult rape, ruled out
  • Suspected adult sexual abuse, ruled out
Inclusion Terms
  • Suspected child rape, ruled out
  • Suspected child sexual abuse, ruled out
Inclusion Terms

Suspected adult physical abuse, ruled out

Inclusion Terms

Suspected child physical abuse, ruled out

Inclusion Terms

Encounter for examination and observation for request for expert evidence

Inclusion Terms

Encounter for observation NOS

Child Codes (More Specific Codes for Z04):

Z04.1 - Encounter for examination and observation following transport accident Z04.2 - Encounter for examination and observation following work accident Z04.3 - Encounter for examination and observation following other accident Z04.4 - Encounter for examination and observation following alleged rape Z04.41 - Encounter for examination and observation following alleged adult rape Z04.42 - Encounter for examination and observation following alleged child rape Z04.6 - Encounter for general psychiatric examination, requested by authority Z04.7 - Encounter for examination and observation following alleged physical abuse Z04.71 - Encounter for examination and observation following alleged adult physical abuse Z04.72 - Encounter for examination and observation following alleged child physical abuse Z04.8 - Encounter for examination and observation for other specified reasons Z04.81 - Encounter for examination and observation of victim following forced sexual exploitation Z04.82 - Encounter for examination and observation of victim following forced labor exploitation Z04.89 - Encounter for examination and observation for other specified reasons Z04.9 - Encounter for examination and observation for unspecified reason

About ICD-10-CM Code Z04 (Encounter for examination and observation for other reasons)

ICD-10-CM code Z04 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM Z04 became effective on October 1, 2024.

This page provides detailed information about Z04 - Encounter for examination and observation for other reasons. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Encounter for examination and observation for other reasons.