Z40
Encounter for prophylactic surgery
Non-billable headerNot valid on its own. Use one of the more specific codes under it.
Z40 is a non-billable ICD-10-CM code category for encounter for prophylactic surgery. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are Z40.0 Encounter for prophylactic surgery for risk factors related to malignant neoplasms; Z40.8 Encounter for other prophylactic surgery and Z40.9 Encounter for prophylactic surgery, unspecified. Its coding notes include 2 Excludes1 entries and 1 Excludes2 entry.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
This code
- organ donations (Z52.-)
- therapeutic organ removal-code to condition
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (1 note)
Inherited from Z40–Z53 Encounters for other specific health care
- follow-up examination for medical surveillance after treatment (Z08-Z09)
Notes
Also from chapter/block level (3 notes)
Inherited from Chapter 21 Factors influencing health status and contact with health services
- Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
- (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
- (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.