O10.9 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
Short description: Unsp pre-existing hypertension compl preg/chldbrth
The 2023 edition of ICD-10-CM O10.9 became effective on October 1, 2022.
This is the American ICD-10-CM version of O10.9 – other international versions of ICD-10 O10.9 may differ.