ICD-10-CM category
O24: Diabetes mellitus in pregnancy, childbirth, and the puerperium
Codes under O24 (Diabetes mellitus in pregnancy, childbirth, and the puerperium). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| O24.0 | Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium | — |
| O24.0 | Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium | — |
| O24.01 | Pre-existing type 1 diabetes mellitus, in pregnancy | — |
| O24.01 | Pre-existing type 1 diabetes mellitus, in pregnancy | — |
| O24.1 | Pre-existing type 2 diabetes mellitus, in pregnancy, childbirth and the puerperium | — |
| O24.1 | Pre-existing type 2 diabetes mellitus, in pregnancy, childbirth and the puerperium | — |
| O24.02 | Pre-existing type 1 diabetes mellitus, in childbirth | ✓ |
| O24.02 | Pre-existing type 1 diabetes mellitus, in childbirth | ✓ |
| O24.03 | Pre-existing type 1 diabetes mellitus, in the puerperium | ✓ |
| O24.03 | Pre-existing type 1 diabetes mellitus, in the puerperium | ✓ |
| O24.3 | Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperium | — |
| O24.3 | Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperium | — |
| O24.4 | Gestational diabetes mellitus | — |
| O24.4 | Gestational diabetes mellitus | — |
| O24.8 | Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperium | — |
| O24.8 | Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperium | — |
| O24.9 | Unspecified diabetes mellitus in pregnancy, childbirth and the puerperium | — |
| O24.9 | Unspecified diabetes mellitus in pregnancy, childbirth and the puerperium | — |
| O24.011 | Pre-existing type 1 diabetes mellitus, in pregnancy, first trimester | ✓ |
| O24.011 | Pre-existing type 1 diabetes mellitus, in pregnancy, first trimester | ✓ |
| O24.11 | Pre-existing type 2 diabetes mellitus, in pregnancy | — |
| O24.11 | Pre-existing type 2 diabetes mellitus, in pregnancy | — |
| O24.012 | Pre-existing type 1 diabetes mellitus, in pregnancy, second trimester | ✓ |
| O24.012 | Pre-existing type 1 diabetes mellitus, in pregnancy, second trimester | ✓ |
| O24.12 | Pre-existing type 2 diabetes mellitus, in childbirth | ✓ |
| O24.12 | Pre-existing type 2 diabetes mellitus, in childbirth | ✓ |
| O24.013 | Pre-existing type 1 diabetes mellitus, in pregnancy, third trimester | ✓ |
| O24.013 | Pre-existing type 1 diabetes mellitus, in pregnancy, third trimester | ✓ |
| O24.13 | Pre-existing type 2 diabetes mellitus, in the puerperium | ✓ |
| O24.13 | Pre-existing type 2 diabetes mellitus, in the puerperium | ✓ |
| O24.019 | Pre-existing type 1 diabetes mellitus, in pregnancy, unspecified trimester | ✓ |
| O24.019 | Pre-existing type 1 diabetes mellitus, in pregnancy, unspecified trimester | ✓ |
| O24.31 | Unspecified pre-existing diabetes mellitus in pregnancy | — |
| O24.31 | Unspecified pre-existing diabetes mellitus in pregnancy | — |
| O24.32 | Unspecified pre-existing diabetes mellitus in childbirth | ✓ |
| O24.32 | Unspecified pre-existing diabetes mellitus in childbirth | ✓ |
| O24.33 | Unspecified pre-existing diabetes mellitus in the puerperium | ✓ |
| O24.33 | Unspecified pre-existing diabetes mellitus in the puerperium | ✓ |
| O24.41 | Gestational diabetes mellitus in pregnancy | — |
| O24.41 | Gestational diabetes mellitus in pregnancy | — |
| O24.42 | Gestational diabetes mellitus in childbirth | — |
| O24.42 | Gestational diabetes mellitus in childbirth | — |
| O24.43 | Gestational diabetes mellitus in the puerperium | — |
| O24.43 | Gestational diabetes mellitus in the puerperium | — |
| O24.81 | Other pre-existing diabetes mellitus in pregnancy | — |
| O24.81 | Other pre-existing diabetes mellitus in pregnancy | — |
| O24.82 | Other pre-existing diabetes mellitus in childbirth | ✓ |
| O24.82 | Other pre-existing diabetes mellitus in childbirth | ✓ |
| O24.83 | Other pre-existing diabetes mellitus in the puerperium | ✓ |
| O24.83 | Other pre-existing diabetes mellitus in the puerperium | ✓ |
| O24.91 | Unspecified diabetes mellitus in pregnancy | — |
| O24.91 | Unspecified diabetes mellitus in pregnancy | — |
| O24.92 | Unspecified diabetes mellitus in childbirth | ✓ |
| O24.92 | Unspecified diabetes mellitus in childbirth | ✓ |
| O24.93 | Unspecified diabetes mellitus in the puerperium | ✓ |
| O24.93 | Unspecified diabetes mellitus in the puerperium | ✓ |
| O24.111 | Pre-existing type 2 diabetes mellitus, in pregnancy, first trimester | ✓ |
| O24.111 | Pre-existing type 2 diabetes mellitus, in pregnancy, first trimester | ✓ |
| O24.112 | Pre-existing type 2 diabetes mellitus, in pregnancy, second trimester | ✓ |
| O24.112 | Pre-existing type 2 diabetes mellitus, in pregnancy, second trimester | ✓ |
| O24.113 | Pre-existing type 2 diabetes mellitus, in pregnancy, third trimester | ✓ |
| O24.113 | Pre-existing type 2 diabetes mellitus, in pregnancy, third trimester | ✓ |
| O24.119 | Pre-existing type 2 diabetes mellitus, in pregnancy, unspecified trimester | ✓ |
| O24.119 | Pre-existing type 2 diabetes mellitus, in pregnancy, unspecified trimester | ✓ |
| O24.311 | Unspecified pre-existing diabetes mellitus in pregnancy, first trimester | ✓ |
| O24.311 | Unspecified pre-existing diabetes mellitus in pregnancy, first trimester | ✓ |
| O24.312 | Unspecified pre-existing diabetes mellitus in pregnancy, second trimester | ✓ |
| O24.312 | Unspecified pre-existing diabetes mellitus in pregnancy, second trimester | ✓ |
| O24.313 | Unspecified pre-existing diabetes mellitus in pregnancy, third trimester | ✓ |
| O24.313 | Unspecified pre-existing diabetes mellitus in pregnancy, third trimester | ✓ |
| O24.319 | Unspecified pre-existing diabetes mellitus in pregnancy, unspecified trimester | ✓ |
| O24.319 | Unspecified pre-existing diabetes mellitus in pregnancy, unspecified trimester | ✓ |
| O24.410 | Gestational diabetes mellitus in pregnancy, diet controlled | ✓ |
| O24.410 | Gestational diabetes mellitus in pregnancy, diet controlled | ✓ |
| O24.414 | Gestational diabetes mellitus in pregnancy, insulin controlled | ✓ |
| O24.414 | Gestational diabetes mellitus in pregnancy, insulin controlled | ✓ |
| O24.415 | Gestational diabetes mellitus in pregnancy, controlled by oral hypoglycemic drugs | ✓ |
| O24.415 | Gestational diabetes mellitus in pregnancy, controlled by oral hypoglycemic drugs | ✓ |
| O24.419 | Gestational diabetes mellitus in pregnancy, unspecified control | ✓ |
| O24.419 | Gestational diabetes mellitus in pregnancy, unspecified control | ✓ |
| O24.420 | Gestational diabetes mellitus in childbirth, diet controlled | ✓ |
| O24.420 | Gestational diabetes mellitus in childbirth, diet controlled | ✓ |
| O24.424 | Gestational diabetes mellitus in childbirth, insulin controlled | ✓ |
| O24.424 | Gestational diabetes mellitus in childbirth, insulin controlled | ✓ |
| O24.425 | Gestational diabetes mellitus in childbirth, controlled by oral hypoglycemic drugs | ✓ |
| O24.425 | Gestational diabetes mellitus in childbirth, controlled by oral hypoglycemic drugs | ✓ |
| O24.429 | Gestational diabetes mellitus in childbirth, unspecified control | ✓ |
| O24.429 | Gestational diabetes mellitus in childbirth, unspecified control | ✓ |
| O24.430 | Gestational diabetes mellitus in the puerperium, diet controlled | ✓ |
| O24.430 | Gestational diabetes mellitus in the puerperium, diet controlled | ✓ |
| O24.434 | Gestational diabetes mellitus in the puerperium, insulin controlled | ✓ |
| O24.434 | Gestational diabetes mellitus in the puerperium, insulin controlled | ✓ |
| O24.435 | Gestational diabetes mellitus in puerperium, controlled by oral hypoglycemic drugs | ✓ |
| O24.435 | Gestational diabetes mellitus in puerperium, controlled by oral hypoglycemic drugs | ✓ |
| O24.439 | Gestational diabetes mellitus in the puerperium, unspecified control | ✓ |
| O24.439 | Gestational diabetes mellitus in the puerperium, unspecified control | ✓ |
| O24.811 | Other pre-existing diabetes mellitus in pregnancy, first trimester | ✓ |
| O24.811 | Other pre-existing diabetes mellitus in pregnancy, first trimester | ✓ |
| O24.812 | Other pre-existing diabetes mellitus in pregnancy, second trimester | ✓ |
| O24.812 | Other pre-existing diabetes mellitus in pregnancy, second trimester | ✓ |
| O24.813 | Other pre-existing diabetes mellitus in pregnancy, third trimester | ✓ |
| O24.813 | Other pre-existing diabetes mellitus in pregnancy, third trimester | ✓ |
| O24.819 | Other pre-existing diabetes mellitus in pregnancy, unspecified trimester | ✓ |
| O24.819 | Other pre-existing diabetes mellitus in pregnancy, unspecified trimester | ✓ |
| O24.911 | Unspecified diabetes mellitus in pregnancy, first trimester | ✓ |
| O24.911 | Unspecified diabetes mellitus in pregnancy, first trimester | ✓ |
| O24.912 | Unspecified diabetes mellitus in pregnancy, second trimester | ✓ |
| O24.912 | Unspecified diabetes mellitus in pregnancy, second trimester | ✓ |
| O24.913 | Unspecified diabetes mellitus in pregnancy, third trimester | ✓ |
| O24.913 | Unspecified diabetes mellitus in pregnancy, third trimester | ✓ |
| O24.919 | Unspecified diabetes mellitus in pregnancy, unspecified trimester | ✓ |
| O24.919 | Unspecified diabetes mellitus in pregnancy, unspecified trimester | ✓ |
Frequently asked questions
What is ICD-10-CM code O24?
O24 is an ICD-10-CM category covering Diabetes mellitus in pregnancy, childbirth, and the puerperium. It contains 112 more specific diagnosis codes, 84 of which are billable.
Is O24 a billable code?
No — O24 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 O24.0 — Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium). 84 of the 112 codes under O24 are billable.
What codes fall under O24?
O24 includes O24.0, O24.0, O24.01, O24.01, O24.1, plus 107 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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