Z19.1
Hormone sensitive malignancy status
Z19.1 (also written Z191) is a billable ICD-10-CM diagnosis code for hormone sensitive malignancy status. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 2 codes in category Z19 (Hormone sensitivity malignancy status). The Alphabetic Index lists it under 1 entry. Its coding notes include a Code first instruction.
Code first
If the underlying condition listed here is present and known, sequence it first.
- malignant neoplasm - see Table of Neoplasms, by site, malignant
Care settings
How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.
Hospice: not accepted as primary
Not accepted as the principal diagnosis on a hospice claim (bill types 081x and 082x). The Integrated OCE returns an edit for this code.
Reason: Supplementary or additional code, not allowed as principal diagnosis.
Notes
Also from chapter/block level (3 notes)
- 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.
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 1 entry