Z77
Non-billableOther contact with and (suspected) exposures hazardous to health
Z77 is the ICD-10-CM code for Other contact with and (suspected) exposures hazardous to health. It is a non-billable category code — use a more specific child code such as Z77.0 for billing.
- Status
- Header (non-billable)
- Chapter
- Z00-Z99
- Subcodes
- 5
- Edition
- FY2026
Z00-Z99 Factors influencing health status and contact with health services
What this means — in plain language
MedlinePlus · NIHA poison is any substance that is harmful to your body. You might swallow it, inhale it, inject it, or absorb it through your skin. Any substance can be poisonous if too much is taken. Poisons can include: Prescription or over-the-counter medicines taken in doses that are too high Overdoses of illegal drugs Carbon monoxide from gas appliances Household products , such as laundry powder or furniture polish Pesticides…
Read more about Poisoning at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •contact with and (suspected) exposures to potential hazards to health
Excludes2 — not included here
- •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)
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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