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Table 1 Classifications and coding for causes of PPH

From: Trends in postpartum hemorrhage in high resource countries: a review and recommendations from the International Postpartum Hemorrhage Collaborative Group

Cause of PPH ICD-9 coding ICD-10 Coding Scottish data classification
Third stage hemorrhage (Postpartum hemorrhage due to retained placenta) 666.0 O72.0 Hemorrhage due to retained products
Other immediate postpartum hemorrhage, within the first 24 hours following delivery of placenta
(Uterine atony)
666.1 O72.1 Hemorrhage due to uterine atony
Delayed and secondary postpartum hemorrhage (after the first 24 hours following delivery) 666.2 O72.2  
Postpartum coagulation defects 666.3 O72.3  
Other causes    Hemorrhage due to placental abruption, placenta previa, trauma or other causes