COBGC ICD-10 Coding for OB/GYN 3

Question 1

A patient delivers a single liveborn infant at 39 weeks via uncomplicated spontaneous vaginal delivery. Which code set is correct?

Accepted Answer

O80, Z3A.39, Z37.0

Answer

O80 = full-term uncomplicated delivery; Z3A.39 = 39 weeks gestation; Z37.0 = outcome of delivery, single liveborn infant.

Question 2

The outcome of delivery code from category Z37 is:

Accepted Answer

Always assigned as a secondary code on the maternal delivery record

Answer

Z37 outcome-of-delivery codes are required secondary codes on the maternal record for every delivery encounter.

Question 3

A patient undergoes a cesarean section due to a breech-presenting fetus at 39 weeks with no other documented complications. What is the principal ICD-10-CM diagnosis?

Accepted Answer

O32.1XX0 – Maternal care for breech presentation, single fetus

Answer

The indication for the cesarean (breech presentation, O32.1XX0) is sequenced as principal diagnosis; O82 is reserved for cesarean deliveries with no documented clinical indication.

Question 4

A patient at 35 weeks has premature rupture of membranes (PROM) with labor beginning within 24 hours. Which ICD-10-CM code applies?

Accepted Answer

O42.013 – Preterm PROM, onset of labor within 24 hours, third trimester

Answer

35 weeks is in the third trimester (28+ weeks); labor began within 24 hours of rupture; therefore O42.013 (preterm PROM, onset within 24 hours, third trimester) is correct.

Question 5

A patient at 34 weeks has complete placenta previa with active hemorrhage. Which ICD-10-CM code is correct?

Accepted Answer

O44.13 – Complete placenta previa with hemorrhage, third trimester

Answer

34 weeks is in the third trimester; the hemorrhage subcategory of complete placenta previa is O44.1; combined with trimester designation, the code is O44.13.

(COBGC) Certified Obstetrics Gynecology Coder Practice Test

(COBGC) Certified Obstetrics Gynecology Coder Practice Test

COBGC ICD-10 Coding for OB/GYN 3