Z40.0

Encounter for prophylactic surgery for risk factors related to malignant neoplasms

FY2027Chapter 21: Factors influencing health status and contact with health services/Z40–Z53 Encounters for other specific health care

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

Use additional code
Excludes1
Excludes2

Z40.0 is a non-billable ICD-10-CM code header for encounter for prophylactic surgery for risk factors related to malignant neoplasms. 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 Z40.00 Encounter for prophylactic removal of unspecified organ, Z40.01 Encounter for prophylactic removal of breast, Z40.02 Encounter for prophylactic removal of ovary(s), Z40.03 Encounter for prophylactic removal of fallopian tube(s) and 1 more. Its coding notes include a Use additional code instruction, 2 Excludes1 entries and 1 Excludes2 entry.

Use additional code

Add the listed code as a secondary code, if known.

This code

code to identify risk factor, such as genetic susceptibility to malignant neoplasm Z15.-

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Inherited from Z40 Encounter for prophylactic surgery

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)

Inclusion terms

Conditions classified to this code.

This code

Admission for prophylactic organ removal

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.

More specific codes under Z40.0 5