Z04.9
Z04.9: Encounter for examination and observation for unspecified reason
Billable / specific codeICD-10-CM
Z04.9 is a billable, specific ICD-10-CM code for encounter for examination and observation for unspecified reason. It is valid for submission on a claim.
Check Z04.9 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Encounter for observation NOS
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Alphabetic index entries that lead here
- Investigation
- Observation(following) (for) (without need for further medical care)
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under Z04
- Z04.1Encounter for examination and observation following transport accident
- Z04.2Encounter for examination and observation following work accident
- Z04.3Encounter for examination and observation following other accident
- Z04.4Encounter for examination and observation following alleged rape
- Z04.6Encounter for general psychiatric examination, requested by authority
- Z04.7Encounter for examination and observation following alleged physical abuse
- Z04.8Encounter for examination and observation for other specified reasons