Z40.0Header code — not billable
Encounter for prophylactic surgery for risk factors related to malignant neoplasms
Short description: Encntr for prophylc surg for risks related to malig neoplm
- Chapter
- 21. Factors influencing health status and contact with health services
- Category
- Z40
- Effective date
- October 1, 2026
Related codes in category Z40
Z40Encounter for prophylactic surgeryZ40.00Encounter for prophylactic removal of unspecified organYesZ40.01Encounter for prophylactic removal of breastYesZ40.02Encounter for prophylactic removal of ovary(s)YesZ40.03Encounter for prophylactic removal of fallopian tube(s)YesZ40.09Encounter for prophylactic removal of other organYesZ40.8Encounter for other prophylactic surgeryZ40.81Enc for proph surg for remov ovary(s) w/o gen/fam risk fctrsYesZ40.82Enc for proph surg for remov fallop(s) w/o gen/fam risk fctrYesZ40.89Encounter for other prophylactic surgeryYesZ40.9Encounter for prophylactic surgery, unspecifiedYes
Frequently asked questions
What is ICD-10 code Z40.0?
Z40.0 is an ICD-10-CM diagnosis code for Encounter for prophylactic surgery for risk factors related to malignant neoplasms.
Is Z40.0 a billable code?
No. Z40.0 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is Z40.0 in?
Z40.0 falls under Chapter 21: Factors influencing health status and contact with health services.
When did Z40.0 become effective?
Z40.0 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Z40.0?
Z40.0 belongs to category Z40, which includes 11 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.