| Cause of PPH | ICD-9 coding | ICD-10 coding | Scottish Data Classification |
| Third stage hemorrhage (Postpartum hemorrhage due to retained placenta) | 666.0 | 072.0 | Hemorrhage due to retained products |
| Other immediate postpartum hemorrhage, within the first 24 hours following delivery of placenta (Uterine atony) | 666.1 | 072.1 | Hemorrhage due to uterine atony |
| Delayed and secondary postpartum hemorrhage (after the first 24 hours following delivery) | 666.2 | 072.2 | |
| postpartum coagulation defects | 666.3 | 072.3 | |
| Other causes | Hemorrhage due to placental abruption, placenta previa, trauma or other causes |