Z03.81

Z03.81: Encounter for observation for suspected exposure to biological agents ruled out

Non-billable headerICD-10-CM

Z03.81 is a non-billable header ICD-10-CM code for encounter for observation for suspected exposure to biological agents ruled out. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 inherited from the categories above Z03.81

A category’s note binds every code beneath it.

Written on Z03: Encounter for medical observation for suspected diseases and conditions ruled out

contact with and (suspected) exposures hazardous to health (Z77.-)
encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out (Z05.-)
person with feared complaint in whom no diagnosis is made (Z71.1)
signs or symptoms under study- code to signs or symptoms

Other codes that can never be billed with Z03.81

Their own Excludes1 notes name this code, so the conflict is not listed above.

Z01Encounter for other special examination without complaint, suspected or reported diagnosis
Z71.1Person with feared health complaint in whom no diagnosis is made

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead Z03.81

2 child codes. Green means billable.