Z51.1
Non-billableEncounter for antineoplastic chemotherapy and immunotherapy
Encounter for antineoplastic chemotherapy and immunotherapy
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- follow-up examination after treatment (Z08-Z09)
Excludes 2
Conditions not included here, but the patient may have both
- follow-up examination for medical surveillance after treatment (Z08-Z09)
- encounter for chemotherapy and immunotherapy for nonneoplastic condition - code to condition
Code Also
A second code may be required; sequencing depends on circumstances
- condition requiring care
Child Codes (2)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code Z51.1?
ICD-10-CM code Z51.1 represents "Encounter for antineoplastic chemotherapy and immunotherapy". It is a non-billable header code — use a more specific child code for billing purposes.
Is Z51.1 a billable code?
No, Z51.1 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 2 child codes under Z51.1.
What chapter is Z51.1 in?
Z51.1 is in Chapter 22: Factors Influencing Health Status and Contact With Health Services (codes Z00-Z99).
What codes cannot be used with Z51.1?
Z51.1 has Excludes1 notes indicating codes that cannot be used together with it, including: follow-up examination after treatment (Z08-Z09).
What are the subcategories under Z51.1?
Z51.1 has 2 child codes, including: Z51.11 (Encounter for antineoplastic chemotherapy), Z51.12 (Encounter for antineoplastic immunotherapy).
What are the UMLS CUIs for Z51.1?
Z51.1 is linked to 1 UMLS Concept Unique Identifier: C0476658. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.