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Z04.9 - Encounter for examination and observation for unspecified reason


The ICD 10 Code for Encounter for examination and observation for unspecified reason is listed as Z04.9.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: Z04.9
Description: Encounter for examination and observation for unspecified reason
  • Encounter for observation NOS
Diagnostic Related Groups
(MS-DRG v30.0)		 951 - Other Factors Influencing Health Status
Chapter Factors influencing health status and contact with health services (Z00-Z99)
Block Persons encountering health services for examinations (Z00-Z13)
Parent Z04 - Encounter for examination and observation for other reasons
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: V71.9 - Observation for unspecified suspected condition (approximate)
ICD-10-CM Siblings (same level / similar specificity) of Z04.9:
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
Z04.6 - Encounter for general psychiatric examination, requested by authority
Z04.7 - Encounter for examination and observation following alleged physical abuse
Z04.8 - Encounter for examination and observation for other specified reasons