Z40.01
Encounter for prophylactic removal of breast
BillableComplete code, valid to report
Z40.01 (also written Z4001) is a billable ICD-10-CM diagnosis code for encounter for prophylactic removal of breast. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 9 codes in category Z40 (Encounter for prophylactic surgery). The Alphabetic Index lists it under 2 entries. 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.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
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.
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 2 entries