Z77 — Other contact with and (suspected) exposures hazardous to health
Not billable
Is Z77 billable?
No — Z77 is a non-billable header code. Z77 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 31 billable codes beneath Z77.
Billable codes under this header
- Z77.9Other contact with and (suspected) exposures hazardous to health
- Z77.21Contact with and (suspected) exposure to potentially hazardous body fluids
- Z77.22Contact with and (suspected) exposure to environmental tobacco smoke (acute) (chronic)
- Z77.29Contact with and (suspected) exposure to other hazardous substances
- Z77.31Contact with and (suspected) exposure to Gulf War theater
- Z77.32Contact with and (suspected) exposure to burn pits in war theater
- Z77.33Contact with and (suspected) exposure to Agent Orange
- Z77.39Contact with and (suspected) exposure to other war theater
- Z77.40Contact with and (suspected) exposure to unspecified blast overpressure
- Z77.41Contact with and (suspected) exposure to low-level blast overpressure
- Z77.42Contact with and (suspected) exposure to high-level blast overpressure
- Z77.49Contact with and (suspected) exposure to other blast overpressure
- Z77.010Contact with and (suspected) exposure to arsenic
- Z77.011Contact with and (suspected) exposure to lead
- Z77.012Contact with and (suspected) exposure to uranium
- Z77.013Contact with and (suspected) exposure to gadolinium
- Z77.018Contact with and (suspected) exposure to other hazardous metals
- Z77.020Contact with and (suspected) exposure to aromatic amines
- Z77.021Contact with and (suspected) exposure to benzene
- Z77.028Contact with and (suspected) exposure to other hazardous aromatic compounds
- Z77.090Contact with and (suspected) exposure to asbestos
- Z77.098Contact with and (suspected) exposure to other hazardous, chiefly nonmedicinal, chemicals
- Z77.110Contact with and (suspected) exposure to air pollution
- Z77.111Contact with and (suspected) exposure to water pollution
- Z77.112Contact with and (suspected) exposure to soil pollution
- Z77.118Contact with and (suspected) exposure to other environmental pollution
- Z77.120Contact with and (suspected) exposure to mold (toxic)
- Z77.121Contact with and (suspected) exposure to harmful algae and algae toxins
- Z77.122Contact with and (suspected) exposure to noise
- Z77.123Contact with and (suspected) exposure to radon and other naturally occurring radiation
- Z77.128Contact with and (suspected) exposure to other hazards in the physical environment
Z77 at a glance
| Code | Z77 |
|---|---|
| Description | Other contact with and (suspected) exposures hazardous to health |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes2 — not included here
The conditions below are not part of Z77, but a patient may have both at the same time. When documentation supports it, Z77 and the excluded code may both be reported.
- 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 classified to Z77.
- contact with and (suspected) exposures to potential hazards to health
Code also — inherited from Z77-Z99
Two codes may be needed to describe the condition fully. Whether Z77 is sequenced first depends on the reason for the encounter.
- any follow-up examination (Z08-Z09)
What codes fall under Z77? (6)
- Z77.0Contact with and (suspected) exposure to hazardous, chiefly nonmedicinal, chemicalsnot billable
- Z77.1Contact with and (suspected) exposure to environmental pollution and hazards in the physical environmentnot billable
- Z77.2Contact with and (suspected) exposure to other hazardous substancesnot billable
- Z77.3Contact with and (suspected) exposure to war theaternot billable
- Z77.4Contact with and (suspected) exposure to blast overpressurenot billable
- Z77.9Other contact with and (suspected) exposures hazardous to health
How long has Z77 existed?
Z77 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.