Z03.818
Z03.818: Encounter for observation for suspected exposure to other biological agents ruled out
Billable / specific codeICD-10-CMPOA exempt
Z03.818 is a billable, specific ICD-10-CM code for encounter for observation for suspected exposure to other biological agents ruled out. It is valid for submission on a claim.
Check Z03.818 with the rest of the claim: free scrubberExcludes1 inherited from the categories above Z03.818
A category’s note binds every code beneath it.
Written on Z03: Encounter for medical observation for suspected diseases and conditions ruled out
Other codes that can never be billed with Z03.818
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
Z03.818 is named in 8 Medicare coverage policies: 8 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
- A58575Billing and Coding: Respiratory Pathogen Panel Testing
- A58577Billing and Coding: Respiratory Pathogen Panel Testing
- A58710Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
Alphabetic index entries that lead here
- Encounter›suspected exposure, ruled out›biological agents NEC
- Encounter›observation›exposure to›biological agent NEC
- Observation›suspected, ruled out›exposure›biological agent NEC
Code history
Unchanged in every release from FY2024 to FY2027.