Is Z17.21 a billable ICD-10-CM code?

Yes. Z17.21 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Z17.21 sit in the tabular list?

Factors influencing health status and contact with health services (Z00-Z99), in the block Estrogen, and other hormones and factors receptor status (Z17).

Z17.21

Z17.21 — Progesterone receptor positive status

Billable / specific codeICD-10-CMPOA exempt

Z17.21 is a billable, specific ICD-10-CM code for progesterone receptor positive status. It is valid for submission on a claim.

Inclusion terms

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

Risk adjustment

Z17.21 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 Z17.21 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 Z17.21.

Status›progesterone receptor›positive

Related codes at this level

Codes that share Z17.2. If Z17.21 is not quite right, the correct code is usually one of these.

Z17.22Progesterone receptor negative status

Questions about Z17.21

Is Z17.21 a billable ICD-10-CM code?: Yes. Z17.21 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Z17.21 sit in the tabular list?: Factors influencing health status and contact with health services (Z00-Z99), in the block Estrogen, and other hormones and factors receptor status (Z17).