MCMCB Pro
Z77.028

Z77.028Contact with and (suspected) exposure to other hazardous aromatic compounds

Billable / specific codeICD-10-CM

Z77.028 is a billable, specific ICD-10-CM code for contact with and (suspected) exposure to other hazardous aromatic compounds. It is valid for submission on a claim.

Inclusion terms

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

  • Aromatic dyes NOS
  • Polycyclic aromatic hydrocarbons

Risk adjustment

Z77.028 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

How Z77.028 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Z77.028.

  • Contactaromatic compounds NEC(hazardous)
  • Contactaromatic dyes NOS
  • Contactpolycyclic aromatic hydrocarbons
  • Exposurearomatic compounds NEC(hazardous)
  • Exposurearomatic dyes NOS
  • Exposurepolycyclic aromatic hydrocarbons

Related codes at this level

Codes that share Z77.02. If Z77.028 is not quite right, the correct code is usually one of these.

Questions about Z77.028

Is Z77.028 a billable ICD-10-CM code?
Yes. Z77.028 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Z77.028 sit in the tabular list?
Factors influencing health status and contact with health services (Z00-Z99), in the block Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).
ICD-10-CMFY2026-Apr· effective April 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.