Z77

Z77: Other contact with and (suspected) exposures hazardous to health

Non-billable headerICD-10-CM

Z77 is a non-billable header ICD-10-CM code for other contact with and (suspected) exposures hazardous to health. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

contact with and (suspected) exposure to communicable diseases (Z20.-)
exposure to (parental) (environmental) tobacco smoke in the perinatal period (P96.81)
newborn affected by noxious substances transmitted via placenta or breast milk (P04.-)
occupational exposure to risk factors (Z57.-)
retained foreign body (Z18.-)
retained foreign body fully removed (Z87.821)
toxic effects of substances chiefly nonmedicinal as to source (T51-T65)

Includes

Conditions this code covers.

contact with and (suspected) exposures to potential hazards to health

Other codes that can never be billed with Z77

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

Z13.88Encounter for screening for disorder due to exposure to contaminants
Z03Encounter for medical observation for suspected diseases and conditions ruled out
Z92.3Personal history of irradiation
X39.0Exposure to natural radiation

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 Z77

6 child codes. Green means billable.