2018 ICD-10-CM Diagnosis Code Z04

Encounter for examination and observation for other reasons

Includes
Includes Help
"Includes" further defines, or give examples of, the content of the code or category.
  • 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.
The following code(s) above Z04 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to Z04:
  • Z00-Z99
    2018 ICD-10-CM Range Z00-Z99

    Factors influencing health status and contact with health services

    Note
    • Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
    • (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
    • (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
    Factors influencing health status and contact with health services
  • Z00-Z13
    2018 ICD-10-CM Range Z00-Z13

    Persons encountering health services for examinations

    Note
    • Nonspecific abnormal findings disclosed at the time of these examinations are classified to categories R70-R94.
    Type 1 Excludes
    • examinations related to pregnancy and reproduction (Z30-Z36, Z39.-)
    Persons encountering health services for examinations
Code History
ICD-10-CM Codes Adjacent To Z04
Z03.72 Encounter for suspected placental problem ruled out
Z03.73 Encounter for suspected fetal anomaly ruled out
Z03.74 Encounter for suspected problem with fetal growth ruled out
Z03.75 Encounter for suspected cervical shortening ruled out
Z03.79 Encounter for other suspected maternal and fetal conditions ruled out
Z03.8 Encounter for observation for other suspected diseases and conditions ruled out
Z03.81 Encounter for observation for suspected exposure to biological agents ruled out
Z03.810 Encounter for observation for suspected exposure to anthrax ruled out
Z03.818 Encounter for observation for suspected exposure to other biological agents ruled out
Z03.89 Encounter for observation for other suspected diseases and conditions ruled out
Z04 Encounter for examination and observation for other reasons
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

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.