ICD-10-CM › Z00-Z99 › Z77-Z99 › Z77 Other contact with and (suspected)... › Z77.3

Z77.3

Contact with and (suspected) exposure to war theater

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2026 onwards. It has never been valid for submission on its own.

Submit one of these 4 more specific codes instead:

  • Z77.31 Contact with and (suspected) exposure to Gulf War theater
  • Z77.32 Contact with and (suspected) exposure to burn pits in war theater
  • Z77.33 Contact with and (suspected) exposure to Agent Orange
  • Z77.39 Contact with and (suspected) exposure to other war theater

What has happened to this code

Every change the publisher made, from 2026 to now.

  1. FY2026 Added to the code set Contact with and (suspected) exposure to war theater

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from Z77 Other contact with and (suspected) exposures hazardous 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)

Includes

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

Inherited from the Z77-Z99 section Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)

Code also

  • any follow-up examination (Z08-Z09)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Codes in the same group

CodeDescriptionStatus
Z77.0 Contact with and (suspected) exposure to hazardous, chiefly nonmedicinal, chemicals Not billable
Z77.1 Contact with and (suspected) exposure to environmental pollution and hazards in the physical environment Not billable
Z77.2 Contact with and (suspected) exposure to other hazardous substances Not billable
Z77.4 Contact with and (suspected) exposure to blast overpressure Not billable
Z77.9 Other contact with and (suspected) exposures hazardous to health Valid