COBGC ICD-10 Coding for OB/GYN 2

Question 1

A patient is 20 weeks pregnant and diagnosed with gestational hypertension without significant proteinuria. Which ICD-10-CM code is correct?

Accepted Answer

O13.2 – Gestational hypertension without significant proteinuria, second trimester

Answer

O13.2 is used for gestational (pregnancy-induced) hypertension without significant proteinuria occurring in the second trimester (14–27 weeks).

Question 2

What is the correct ICD-10-CM code for pre-existing essential hypertension complicating pregnancy in the third trimester?

Accepted Answer

O10.013 – Pre-existing essential hypertension complicating pregnancy, third trimester

Answer

O10.013 represents pre-existing essential hypertension (subcategory O10.0) complicating pregnancy specifically in the third trimester.

Question 3

In ICD-10-CM, when coding a complication affecting a specific fetus in a multiple gestation pregnancy, which character position identifies the fetus number?

Accepted Answer

7th character

Answer

The 7th character in ICD-10-CM obstetric codes identifies the affected fetus in multiple gestation (0 = not applicable, 1–5 = individual fetuses, 9 = other fetus).

Question 4

A patient has gestational diabetes mellitus during pregnancy that requires insulin for control. Which ICD-10-CM code applies?

Accepted Answer

O24.414 – Gestational diabetes mellitus in pregnancy, insulin controlled

Answer

O24.414 is the correct code for gestational diabetes mellitus in pregnancy that is controlled by insulin.

Question 5

A patient at 28 weeks gestation develops severe preeclampsia. Which ICD-10-CM code is correct?

Accepted Answer

O14.13 – Severe pre-eclampsia, third trimester

Answer

28 weeks falls in the third trimester; severe preeclampsia uses subcategory O14.1, and the third-trimester designation yields O14.13.

(COBGC) Certified Obstetrics Gynecology Coder Practice Test

(COBGC) Certified Obstetrics Gynecology Coder Practice Test

COBGC ICD-10 Coding for OB/GYN 2