Is Z40 a billable code?
No. Z40 is a header code that groups 9 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
Z40: Encounter for prophylactic surgery
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
Z40 groups related diagnoses under encounter for prophylactic surgery. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under Z40
- Z40.00Encounter for prophylactic removal of unspecified organ
- Z40.01Encounter for prophylactic removal of breast
- Z40.02Encounter for prophylactic removal of ovary(s)
- Z40.03Encounter for prophylactic removal of fallopian tube(s)
- Z40.09Encounter for prophylactic removal of other organ
- Z40.81Encounter for prophylactic surgery for removal of ovary(s) for persons without known genetic/familial risk factors
- Z40.82Encounter for prophylactic surgery for removal of fallopian tube(s) for persons without known genetic/familial risk factors
- Z40.89Encounter for other prophylactic surgery
- Z40.9Encounter for prophylactic surgery, unspecified
Z40 questions
What does Z40 mean?
Z40 is the ICD-10-CM code for Encounter for prophylactic surgery. It is in chapter 22, Factors influencing health status and contact with health services (Z00-Z99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.