O24 vs O99.2
O24 (Diabetes mellitus in pregnancy, childbirth, and the puerperium) compared with O99.2 (Endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. O24 carries an Excludes2 note covering O99.2: “maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Yes, when both are documented. O99.2 carries an Excludes2 note covering O24: “diabetes mellitus (O24.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| O24Diabetes mellitus in pregnancy, childbirth, and the puerperium | O99.2Endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) |
| Definition | Diabetes mellitus in pregnancy, childbirth, and the puerperium is a non-billable ICD-10-CM category code (O24). | Endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium is a non-billable ICD-10-CM category code (O99.2). |
| Includes | — | conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care Conditions in E00-E89 |
| Use additional code | — | code to identify specific condition |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources