O10.01 - Pre-existing essential hypertension complicating pregnancy,

The ICD 10 Code for Pre-existing essential hypertension complicating pregnancy, is listed as O10.01.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field	Value
Diagnosis Code:	O10.01
Description:	Pre-existing essential hypertension complicating pregnancy,

Chapter	Pregnancy, childbirth and the puerperium (O00-O9A)
Block	Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)
Parent	O10.0 - Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium
ICD-10-CM Children (deeper level / typically more specific) of O10.01:
O10.011 - Pre-existing essential hypertension complicating pregnancy, first trimester
O10.012 - Pre-existing essential hypertension complicating pregnancy, second trimester
O10.013 - Pre-existing essential hypertension complicating pregnancy, third trimester
O10.019 - Pre-existing essential hypertension complicating pregnancy, unspecified trimester
ICD-10-CM Siblings (same level / similar specificity) of O10.01:
O10.02 - Pre-existing essential hypertension complicating childbirth
O10.03 - Pre-existing essential hypertension complicating the puerperium