| Z90 | Acquired absence of organs, not elsewhere classified | NON-BILLABLE CODE |
| Z90.0 | Acquired absence of part of head and neck | NON-BILLABLE CODE |
| Z90.02 | Acquired absence of larynx | BILLABLE CODE |
| Z90.09 | Acquired absence of other part of head and neck | BILLABLE CODE |
| Z90.1 | Acquired absence of breast and nipple | NON-BILLABLE CODE |
| Z90.10 | Acquired absence of unspecified breast and nipple | BILLABLE CODE |
| Z90.11 | Acquired absence of right breast and nipple | BILLABLE CODE |
| Z90.12 | Acquired absence of left breast and nipple | BILLABLE CODE |
| Z90.13 | Acquired absence of bilateral breasts and nipples | BILLABLE CODE |
| Z90.2 | Acquired absence of lung [part of] | BILLABLE CODE |
| Z90.3 | Acquired absence of stomach [part of] | BILLABLE CODE |
| Z90.4 | Acquired absence of other specified parts of digestive tract | NON-BILLABLE CODE |
| Z90.41 | Acquired absence of pancreas | NON-BILLABLE CODE |
| Z90.410 | Acquired total absence of pancreas | BILLABLE CODE |
| Z90.411 | Acquired partial absence of pancreas | BILLABLE CODE |
| Z90.49 | Acquired absence of other specified parts of digestive tract | BILLABLE CODE |
| Z90.5 | Acquired absence of kidney | BILLABLE CODE |
| Z90.6 | Acquired absence of other parts of urinary tract | BILLABLE CODE |
| Z90.7 | Acquired absence of genital organ(s) | NON-BILLABLE CODE |
| Z90.71 | Acquired absence of cervix and uterus | NON-BILLABLE CODE |
| Z90.710 | Acquired absence of both cervix and uterus | BILLABLE CODE |
| Z90.711 | Acquired absence of uterus with remaining cervical stump | BILLABLE CODE |
| Z90.712 | Acquired absence of cervix with remaining uterus | BILLABLE CODE |
| Z90.72 | Acquired absence of ovaries | NON-BILLABLE CODE |
| Z90.721 | Acquired absence of ovaries, unilateral | BILLABLE CODE |
| Z90.722 | Acquired absence of ovaries, bilateral | BILLABLE CODE |
| Z90.79 | Acquired absence of other genital organ(s) | BILLABLE CODE |
| Z90.8 | Acquired absence of other organs | NON-BILLABLE CODE |
| Z90.81 | Acquired absence of spleen | BILLABLE CODE |
| Z90.89 | Acquired absence of other organs | BILLABLE CODE |
