| O24 | Diabetes mellitus in pregnancy, childbirth, and the puerperium | NON-BILLABLE CODE |
| O24.0 | Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium | NON-BILLABLE CODE |
| O24.01 | Pre-existing type 1 diabetes mellitus, in pregnancy | NON-BILLABLE CODE |
| O24.011 | Pre-existing type 1 diabetes mellitus, in pregnancy, first trimester | BILLABLE CODE |
| O24.012 | Pre-existing type 1 diabetes mellitus, in pregnancy, second trimester | BILLABLE CODE |
| O24.013 | Pre-existing type 1 diabetes mellitus, in pregnancy, third trimester | BILLABLE CODE |
| O24.019 | Pre-existing type 1 diabetes mellitus, in pregnancy, unspecified trimester | BILLABLE CODE |
| O24.02 | Pre-existing type 1 diabetes mellitus, in childbirth | BILLABLE CODE |
| O24.03 | Pre-existing type 1 diabetes mellitus, in the puerperium | BILLABLE CODE |
| O24.1 | Pre-existing type 2 diabetes mellitus, in pregnancy, childbirth and the puerperium | NON-BILLABLE CODE |
| O24.11 | Pre-existing type 2 diabetes mellitus, in pregnancy | NON-BILLABLE CODE |
| O24.111 | Pre-existing type 2 diabetes mellitus, in pregnancy, first trimester | BILLABLE CODE |
| O24.112 | Pre-existing type 2 diabetes mellitus, in pregnancy, second trimester | BILLABLE CODE |
| O24.113 | Pre-existing type 2 diabetes mellitus, in pregnancy, third trimester | BILLABLE CODE |
| O24.119 | Pre-existing type 2 diabetes mellitus, in pregnancy, unspecified trimester | BILLABLE CODE |
| O24.12 | Pre-existing type 2 diabetes mellitus, in childbirth | BILLABLE CODE |
| O24.13 | Pre-existing type 2 diabetes mellitus, in the puerperium | BILLABLE CODE |
| O24.3 | Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperium | NON-BILLABLE CODE |
| O24.31 | Unspecified pre-existing diabetes mellitus in pregnancy | NON-BILLABLE CODE |
| O24.311 | Unspecified pre-existing diabetes mellitus in pregnancy, first trimester | BILLABLE CODE |
| O24.312 | Unspecified pre-existing diabetes mellitus in pregnancy, second trimester | BILLABLE CODE |
| O24.313 | Unspecified pre-existing diabetes mellitus in pregnancy, third trimester | BILLABLE CODE |
| O24.319 | Unspecified pre-existing diabetes mellitus in pregnancy, unspecified trimester | BILLABLE CODE |
| O24.32 | Unspecified pre-existing diabetes mellitus in childbirth | BILLABLE CODE |
| O24.33 | Unspecified pre-existing diabetes mellitus in the puerperium | BILLABLE CODE |
| O24.4 | Gestational diabetes mellitus | NON-BILLABLE CODE |
| O24.41 | Gestational diabetes mellitus in pregnancy | NON-BILLABLE CODE |
| O24.410 | Gestational diabetes mellitus in pregnancy, diet controlled | BILLABLE CODE |
| O24.414 | Gestational diabetes mellitus in pregnancy, insulin controlled | BILLABLE CODE |
| O24.415 | Gestational diabetes mellitus in pregnancy, controlled by oral hypoglycemic drugs | BILLABLE CODE |
| O24.419 | Gestational diabetes mellitus in pregnancy, unspecified control | BILLABLE CODE |
| O24.42 | Gestational diabetes mellitus in childbirth | NON-BILLABLE CODE |
| O24.420 | Gestational diabetes mellitus in childbirth, diet controlled | BILLABLE CODE |
| O24.424 | Gestational diabetes mellitus in childbirth, insulin controlled | BILLABLE CODE |
| O24.425 | Gestational diabetes mellitus in childbirth, controlled by oral hypoglycemic drugs | BILLABLE CODE |
| O24.429 | Gestational diabetes mellitus in childbirth, unspecified control | BILLABLE CODE |
| O24.43 | Gestational diabetes mellitus in the puerperium | NON-BILLABLE CODE |
| O24.430 | Gestational diabetes mellitus in the puerperium, diet controlled | BILLABLE CODE |
| O24.434 | Gestational diabetes mellitus in the puerperium, insulin controlled | BILLABLE CODE |
| O24.439 | Gestational diabetes mellitus in the puerperium, unspecified control | BILLABLE CODE |
| O24.8 | Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperium | NON-BILLABLE CODE |
| O24.81 | Other pre-existing diabetes mellitus in pregnancy | NON-BILLABLE CODE |
| O24.811 | Other pre-existing diabetes mellitus in pregnancy, first trimester | BILLABLE CODE |
| O24.812 | Other pre-existing diabetes mellitus in pregnancy, second trimester | BILLABLE CODE |
| O24.813 | Other pre-existing diabetes mellitus in pregnancy, third trimester | BILLABLE CODE |
| O24.819 | Other pre-existing diabetes mellitus in pregnancy, unspecified trimester | BILLABLE CODE |
| O24.82 | Other pre-existing diabetes mellitus in childbirth | BILLABLE CODE |
| O24.83 | Other pre-existing diabetes mellitus in the puerperium | BILLABLE CODE |
| O24.9 | Unspecified diabetes mellitus in pregnancy, childbirth and the puerperium | NON-BILLABLE CODE |
| O24.91 | Unspecified diabetes mellitus in pregnancy | NON-BILLABLE CODE |
| O24.911 | Unspecified diabetes mellitus in pregnancy, first trimester | BILLABLE CODE |
| O24.912 | Unspecified diabetes mellitus in pregnancy, second trimester | BILLABLE CODE |
| O24.913 | Unspecified diabetes mellitus in pregnancy, third trimester | BILLABLE CODE |
| O24.919 | Unspecified diabetes mellitus in pregnancy, unspecified trimester | BILLABLE CODE |
| O24.92 | Unspecified diabetes mellitus in childbirth | BILLABLE CODE |
| O24.93 | Unspecified diabetes mellitus in the puerperium | BILLABLE CODE |
