Z51.11 — Encounter for antineoplastic chemotherapy

Z51.11

What this code means

An encounter solely for antineoplastic chemotherapy: a visit whose purpose is giving cancer chemotherapy.

Also called: chemotherapy encounter.

When this code is used

Used for encounter for antineoplastic chemotherapy.

Where it sits in ICD-10-CM

Code Z51.11 belongs to Chapter 21: Factors influencing health status and contact with health services, which covers codes Z00–Z99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Learn more about this condition

• Condition guide: Cancer

Frequently asked questions

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.

More codes in Chapter 21

Z00.00 — Encounter for general adult medical examination without abnormal findingsZ00.01 — Encounter for general adult medical examination with abnormal findingsZ00.129 — Encounter for routine child health examination without abnormal findingsZ01.419 — Encounter for gynecological examination (general) (routine) without abnormal findingsZ01.818 — Encounter for other preprocedural examinationZ09 — Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm

← All Chapter 21 codes · ICD-10 Codes home