| Z12 | Encounter for screening for malignant neoplasms | NON-BILLABLE CODE |
| Z12.0 | Encounter for screening for malignant neoplasm of stomach | BILLABLE CODE |
| Z12.1 | Encounter for screening for malignant neoplasm of intestinal tract | NON-BILLABLE CODE |
| Z12.10 | Encounter for screening for malignant neoplasm of intestinal tract, unspecified | BILLABLE CODE |
| Z12.11 | Encounter for screening for malignant neoplasm of colon | BILLABLE CODE |
| Z12.12 | Encounter for screening for malignant neoplasm of rectum | BILLABLE CODE |
| Z12.13 | Encounter for screening for malignant neoplasm of small intestine | BILLABLE CODE |
| Z12.2 | Encounter for screening for malignant neoplasm of respiratory organs | BILLABLE CODE |
| Z12.3 | Encounter for screening for malignant neoplasm of breast | NON-BILLABLE CODE |
| Z12.31 | Encounter for screening mammogram for malignant neoplasm of breast | BILLABLE CODE |
| Z12.39 | Encounter for other screening for malignant neoplasm of breast | BILLABLE CODE |
| Z12.4 | Encounter for screening for malignant neoplasm of cervix | BILLABLE CODE |
| Z12.5 | Encounter for screening for malignant neoplasm of prostate | BILLABLE CODE |
| Z12.6 | Encounter for screening for malignant neoplasm of bladder | BILLABLE CODE |
| Z12.7 | Encounter for screening for malignant neoplasm of other genitourinary organs | NON-BILLABLE CODE |
| Z12.71 | Encounter for screening for malignant neoplasm of testis | BILLABLE CODE |
| Z12.72 | Encounter for screening for malignant neoplasm of vagina | BILLABLE CODE |
| Z12.73 | Encounter for screening for malignant neoplasm of ovary | BILLABLE CODE |
| Z12.79 | Encounter for screening for malignant neoplasm of other genitourinary organs | BILLABLE CODE |
| Z12.8 | Encounter for screening for malignant neoplasm of other sites | NON-BILLABLE CODE |
| Z12.81 | Encounter for screening for malignant neoplasm of oral cavity | BILLABLE CODE |
| Z12.82 | Encounter for screening for malignant neoplasm of nervous system | BILLABLE CODE |
| Z12.83 | Encounter for screening for malignant neoplasm of skin | BILLABLE CODE |
| Z12.9 | Encounter for screening for malignant neoplasm, site unspecified | BILLABLE CODE |
