Is Z77.120 a billable ICD-10-CM code?

Yes. Z77.120 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Z77.120 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).

Z77.120

Z77.120 — Contact with and (suspected) exposure to mold (toxic)

Billable / specific codeICD-10-CMPOA exempt

Z77.120 is a billable, specific ICD-10-CM code for contact with and (suspected) exposure to mold (toxic). It is valid for submission on a claim.

Risk adjustment

Z77.120 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 Z77.120 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 Z77.120.

Contact›mold(toxic)
Exposure›mold(toxic)

Related codes at this level

Codes that share Z77.12. If Z77.120 is not quite right, the correct code is usually one of these.

Questions about Z77.120

Is Z77.120 a billable ICD-10-CM code?: Yes. Z77.120 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Z77.120 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).