Gestational thrombocytopenia (also called incidental thrombocytopenia of pregnancy or essential thrombocytopenia of pregnancy) is a common process identified in asymptomatic women in the second half of pregnancy.
Gestational thrombocytopenia is characterized by onset in the second or third trimester of isolated thrombocytopenia with steady (not precipitous) decrease in platelet count as the end of pregnancy approaches. This is most likely to be identified in the course of routine third trimester lab evaluation in as many as 5% of pregnant patients.
While the platelet count is depressed in affected individuals, this does not increase maternal or neonatal risks for bleeding complications. This condition spontaneously resolves after delivery.
Idiopathic gestational thrombocytopenia
Alerts and Notices
Important News & Links
Synopsis
Codes
ICD10CM:
O99.891 – Other specified diseases and conditions complicating pregnancy
SNOMEDCT:
128090002 – Benign gestational thrombocytopenia
O99.891 – Other specified diseases and conditions complicating pregnancy
SNOMEDCT:
128090002 – Benign gestational thrombocytopenia
Look For
Subscription Required
Diagnostic Pearls
Subscription Required
Differential Diagnosis & Pitfalls
To perform a comparison, select diagnoses from the classic differential
Subscription Required
Best Tests
Subscription Required
Management Pearls
Subscription Required
Therapy
Subscription Required
References
Subscription Required
Last Reviewed:08/13/2017
Last Updated:08/04/2021
Last Updated:08/04/2021
Idiopathic gestational thrombocytopenia