Z40: Encounter for prophylactic surgery
Codes under Z40 (Encounter for prophylactic surgery). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| Z40.0 | Encounter for prophylactic surgery for risk factors related to malignant neoplasms | — |
| Z40.0 | Encounter for prophylactic surgery for risk factors related to malignant neoplasms | — |
| Z40.00 | Encounter for prophylactic removal of unspecified organ | ✓ |
| Z40.00 | Encounter for prophylactic removal of unspecified organ | ✓ |
| Z40.01 | Encounter for prophylactic removal of breast | ✓ |
| Z40.01 | Encounter for prophylactic removal of breast | ✓ |
| Z40.02 | Encounter for prophylactic removal of ovary(s) | ✓ |
| Z40.02 | Encounter for prophylactic removal of ovary(s) | ✓ |
| Z40.03 | Encounter for prophylactic removal of fallopian tube(s) | ✓ |
| Z40.03 | Encounter for prophylactic removal of fallopian tube(s) | ✓ |
| Z40.8 | Encounter for other prophylactic surgery | — |
| Z40.8 | Encounter for other prophylactic surgery | — |
| Z40.09 | Encounter for prophylactic removal of other organ | ✓ |
| Z40.09 | Encounter for prophylactic removal of other organ | ✓ |
| Z40.9 | Encounter for prophylactic surgery, unspecified | ✓ |
| Z40.9 | Encounter for prophylactic surgery, unspecified | ✓ |
| Z40.81 | Encounter for prophylactic surgery for removal of ovary(s) for persons without known genetic/familial risk factors | ✓ |
| Z40.81 | Encounter for prophylactic surgery for removal of ovary(s) for persons without known genetic/familial risk factors | ✓ |
| Z40.82 | Encounter for prophylactic surgery for removal of fallopian tube(s) for persons without known genetic/familial risk factors | ✓ |
| Z40.82 | Encounter for prophylactic surgery for removal of fallopian tube(s) for persons without known genetic/familial risk factors | ✓ |
| Z40.89 | Encounter for other prophylactic surgery | ✓ |
| Z40.89 | Encounter for other prophylactic surgery | ✓ |
Frequently asked questions
What is ICD-10-CM code Z40?
Z40 is an ICD-10-CM category covering Encounter for prophylactic surgery. It contains 22 more specific diagnosis codes, 18 of which are billable.
Is Z40 a billable code?
No — Z40 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example Z40.0 — Encounter for prophylactic surgery for risk factors related to malignant neoplasms). 18 of the 22 codes under Z40 are billable.
What codes fall under Z40?
Z40 includes Z40.0, Z40.0, Z40.00, Z40.00, Z40.01, plus 17 more. See the full list with descriptions and billable status above.
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
Code the diagnosis right
Join providers across the country delivering modern virtual care with CareNiva. Free to start, ready in minutes.
100% Satisfaction Guaranteed — try it risk-free