Using the following Alphabetic Index entry
Hypertension

Complicating

Childbirth (labor) O16.4

Pre-existing O10.92

With

heart disease O10.12

With renal disease O10.32

Pre-eclampsia O11.4

Renal disease O10.22

With heart disease O10.32

Essential O10.02

Secondary O10.42

What code is assigned for pre-existing essential hypertension complicating childbirth?
Group of answer choices

A. O16.4

B. O10.92

C. O10.02

D. O10.42