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Z77.41

Z77.41: Contact with and (suspected) exposure to low-level blast overpressure

Billable / specific codeICD-10-CMPOA exempt

Z77.41 is a billable, specific ICD-10-CM code for contact with and (suspected) exposure to low-level blast overpressure. It is valid for submission on a claim.

Check Z77.41 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Contact with and (suspected) exposure to LLB overpressure

Excludes2 inherited from the categories above Z77.41

Not part of this code, but both may be coded when both are present.

Written on Z77: Other contact with and (suspected) exposures hazardous to health

  • 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)

Other codes that can never be billed with Z77.41

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • Z13.88Encounter for screening for disorder due to exposure to contaminants
  • Z03Encounter for medical observation for suspected diseases and conditions ruled out

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Contact›blast overpressure NOS›low-level(LLB)
  • Exposure›blast overpressure NOS›low-level(LLB)

Code history

  • addedFY2024-FY2027

    Contact with and (suspected) exposure to low-level blast overpressure

Other codes under Z77.4

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.