Z51.1
Z51.1: Encounter for antineoplastic chemotherapy and immunotherapy
Non-billable headerICD-10-CM
Z51.1 is a non-billable header ICD-10-CM code for encounter for antineoplastic chemotherapy and immunotherapy. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes2: not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- encounter for chemotherapy and immunotherapy for nonneoplastic condition - code to condition
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead Z51.1
2 child codes. Green means billable.