New code ยท FY2027
Not billable: this is a header. Use one of the more specific codes below.
- New code, effective October 1, 2026 (FY2027).
Code breakdown
Z77.4
- Z77CategoryOther contact with and (suspected) exposures hazardous to health
- 4Character 4Contact with and (suspected) exposure to blast overpressure
Coding notes
Includes (from Z77)
- contact with and (suspected) exposures to potential hazards to health
Excludes2 (from Z77)
- 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)
Codes under Z77.4
- Z77.40 Contact with and (suspected) exposure to unspecified blast overpressure
- Z77.41 Contact with and (suspected) exposure to low-level blast overpressure
- Z77.42 Contact with and (suspected) exposure to high-level blast overpressure
- Z77.49 Contact with and (suspected) exposure to other blast overpressure
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ICD-10-CM codes and descriptions are from the CMS and NCHS code files. Coverage is from the CMS Medicare Coverage Database billing and coding articles.