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Z77.33 ✓ Billable

Contact with and (suspected) exposure to Agent Orange

ICD-10-CM · FY2026 · Factors Influencing Health Status

Code
Z77.33
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Factors Influencing Health Status
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Official coding notes

From CMS's ICD-10-CM Tabular List.

Includes
  • contact with and (suspected) exposures to potential hazards to health
Excludes2 — not included here, but may code together
  • 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)

Frequently asked questions

What is ICD-10 code Z77.33?
ICD-10-CM code Z77.33 represents Contact with and (suspected) exposure to Agent Orange. It is a billable diagnosis code in the Factors Influencing Health Status chapter, effective October 1, 2025 – September 30, 2026.
Is Z77.33 billable?
Yes. Z77.33 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is Z77.33 in?
Z77.33 belongs to the Factors Influencing Health Status chapter (Z00–Z99) of ICD-10-CM.

Related codes in the Z77 category

Z77 Other contact with and (suspected) exposures hazardous to health Non-billable Z77.0 Contact with and (suspected) exposure to hazardous, chiefly nonmedicinal, chemicals Non-billable Z77.1 Contact with and (suspected) exposure to environmental pollution and hazards in the physical environment Non-billable Z77.2 Contact with and (suspected) exposure to other hazardous substances Non-billable Z77.3 Contact with and (suspected) exposure to war theater Non-billable Z77.4 Contact with and (suspected) exposure to blast overpressure Non-billable Z77.9 Other contact with and (suspected) exposures hazardous to health Billable Z77.01 Contact with and (suspected) exposure to hazardous metals Non-billable

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