Z19Header code — not billable
Hormone sensitivity malignancy status
- Chapter
- 21. Factors influencing health status and contact with health services
- Category
- Z19
- Effective date
- October 1, 2026
Related codes in category Z19
Frequently asked questions
What is ICD-10 code Z19?
Z19 is an ICD-10-CM diagnosis code for Hormone sensitivity malignancy status.
Is Z19 a billable code?
No. Z19 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is Z19 in?
Z19 falls under Chapter 21: Factors influencing health status and contact with health services.
When did Z19 become effective?
Z19 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Z19?
Z19 belongs to category Z19, which includes 2 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.