Estrogen receptor negative status [ER-]

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2007 Added to the draft code set draft Estrogen receptor negative status [ER-]

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from Z17 Estrogen, and other hormones and factors receptor status

Code first

malignant neoplasm, such as:
malignant neoplasm of breast (C50.-)
malignant neoplasm of ovary (C56.-)

Note

Use one code, as available, for each receptor: Z17.0, Z17.1, Z17.2-, Z17.3-

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Postsurgery status
Status > estrogen receptor > negative

Codes in the same group

Code	Description	Status
Z17.0	Estrogen receptor positive status [ER+]	Valid
Z17.2	Progesterone receptor status	Not billable
Z17.3	Human epidermal growth factor 2 receptor	Not billable
Z17.4	Combined receptor status	Not billable