ICD-10-CM 2027 diagnosis code
Z17Estrogen, and other hormones and factors receptor status
Z17 is a header code, so it can't be reported by itself. Choose one of the 5 more specific codes beneath it.
Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS, effective October 1, 2026. Updated September 29, 2026. About our data
About Z17
Z17 is the ICD-10-CM diagnosis code for estrogen, and other hormones and factors receptor status. It belongs to block Z17 (estrogen, and other hormones and factors receptor status) and chapter 21 (factors influencing health status and contact with health services). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: Z17.0 ([ER+]), Z17.1 ([ER-]), Z17.2 (status), Z17.3 (receptor) and Z17.4 (status).
Code first malignant neoplasm, such as: malignant neoplasm of breast (C50.-) and malignant neoplasm of ovary (C56.-).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2025 (title revised).
Specific codes under Z17
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to Z17.
Broader instructions also apply from Chapter 21: Factors influencing health status and contact with health services.
Codes whose notes reference Z17
- C50Use additional code
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- FY2025 (effective 10/1/2024): Title revised — was “Estrogen receptor status”
Common questions about Z17
Is Z17 billable?
- No. Z17 is a header code. Report one of its more specific subcodes instead.