2027 ICD-10-CM Diagnosis Code Z19Hormone sensitivity malignancy status

ICD-10-CM Codes›Z00–Z99›Z19›Z19

ICD-10-CM Z19
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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
Short Description
Hormone sensitivity malignancy status
Same as the full description in the CMS dataset.
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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to Z19: its own notes plus those printed at Chapter 21. A note printed at a category, block or chapter applies to every code under it.

Code First

The underlying condition named in the note is sequenced before this code.

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

Notes

General instructions on how these codes are used.

From Chapter 21 (Z00-Z99) Factors influencing health status and contact with health services applies to 1,425 codes
  • Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
  • (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
  • (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Code HistoryHistory

FY 2019AddedAdded to the ICD-10-CM code setEffective October 1, 2018.
FY 2020–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About Z19Overview

What is the ICD-10 code for hormone sensitivity malignancy status?

Z19 is the ICD-10-CM category for hormone sensitivity malignancy status, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

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.

What is coded first with Z19?

The Code First note reads: malignant neoplasm - see Table of Neoplasms, by site, malignant. When one of these applies, it is sequenced before Z19.