O10.01 Pre-existing essential hypertension complicating pregnancy

Non-billable header with 4 child codes.

Applies from O10 Pre-existing hypertension complicating pregnancy, childbirth and the puerperium

Includes

• pre-existing hypertension with pre-existing proteinuria complicating pregnancy, childbirth and the puerperium

Excludes2 (not included here)

• pre-existing hypertension with superimposed pre-eclampsia complicating pregnancy, childbirth and the puerperium (O11.-)

Applies from O10.0 Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium

Applicable to

• Any condition in I10 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium

Codes under 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

Code annotations containing back-references to O10.01

Back-references to O10

• Type 1 Excludes: I10 Essential (primary) hypertension ("hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)")
• Use Additional: O11 Pre-existing hypertension with pre-eclampsia ("code from O10 to identify the type of hypertension")
• Type 2 Excludes: O99.4 Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium ("hypertensive disorders (O10-O16)")

Diagnosis Index entries for O10.01

• Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) › complicating › pregnancy › pre-existing › essential

Nearby codes

• O10 Pre-existing hypertension complicating pregnancy, childbirth and the puerperium
• O10.0 Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium
• O10.01 Pre-existing essential hypertension complicating pregnancy (this code)
• 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
• O10.02 Pre-existing essential hypertension complicating childbirth