2026 ICD-10-CM Diagnosis Code Z19Hormone sensitivity malignancy status

ICD-10-CM Codes›Z00–Z99›Z19›Z19

ICD-10-CM Z19
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z19 is a non-billable ICD-10-CM category code for hormone sensitivity malignancy status, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Z19.1 and Z19.2.

Code Identity

ICD-10-CM Code
Z19
Billable Status
No — Non-Billable Category
Code Describes
Hormone sensitivity malignancy status
Chapter
Z19
Hormone sensitivity malignancy status

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ19Hormone sensitivity malignancy status
CategoryZ19Hormone sensitivity malignancy status
This CodeZ19Hormone sensitivity malignancy status

Specific Coding for Hormone sensitivity malignancy statusOverview

Non-specific codes like Z19 require more characters. Use one of these billable codes instead:

  • Use Z19.1 for Hormone sensitive malignancy status

  • Use Z19.2 for Hormone resistant malignancy status

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Code First

  • malignant neoplasm - see Table of Neoplasms, by site, malignant

Code HistoryHistory

FY 2018AddedAdded to the ICD-10-CM code setEffective October 1, 2017.
FY 2019–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z19Overview

Is Z19 (Hormone sensitivity malignancy status) a billable code?

No. This is a category header that groups the codes for hormone sensitivity malignancy status, and headers cannot be submitted on claims. Claims for hormone sensitivity malignancy status need a more specific code from this category, such as Z19.1 and Z19.2.