Is ICD-10-CM code Z19 billable?

No, Z19 (Hormone sensitivity malignancy status) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code Z19 belong to?

Z19 belongs to Chapter 21 of the ICD-10-CM tabular list: Z00–Z99 (Factors Influencing Health Status and Contact with Health Services).

Z19Not billable, use a more specific code below

Hormone sensitivity malignancy status

chapter 21: Factors Influencing Health Status and Contact with Health Services

2 billable codes under Z19: none are a CC or MCC; none map to an HCC.

Instructional notes

Code first: code the underlying condition first, then this code

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

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers when and how to use Z codes (Z00-Z99) for encounters and supplementary information, including contact, status, history, screening, aftercare, exams, and social determinants of health.

Use of Z Codes in Any Healthcare Setting (page 92)
Z Codes Indicate a Reason for an Encounter or Provide Additional Information about a Patient Encounter (page 93)
Categories of Z Codes (page 93)

Read Section I.C.21 (page 92)

All codes under Z19

Z19 can't be used on a claim. Pick a billable code below; grey headings group them.

Z19 MS-DRG

As the principal diagnosis, all 2 billable codes under Z19 group to MS-DRG 951 (v44.0).

DRG 951 Other Factors Influencing Health Status

Code history

Added in FY2017 (effective October 1, 2016). No changes since.