Skip to content

Z51.11

Billable

Encounter for antineoplastic chemotherapy

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A visit to receive chemotherapy (cancer-fighting drugs) as a cancer treatment.

Coding Tips

  • Use this code for each chemotherapy administration encounter, whether inpatient or outpatient
  • Document the specific chemotherapy agents and route of administration in the medical record

Code Hierarchy

Open Z51.11 in the Interactive Encoder

See full code details, AI coding tips, HCC mappings, and related codes in our interactive encoder. Start your 14-day Pro trial — no credit card required.