Final answer:
The patient is diagnosed with pregnancy-induced hypertension and severe edema at 24 weeks gestation. The correct diagnostic codes are O13.1 and O12.00.
Step-by-step explanation:
The correct answer is a) O13.1, O12.00. The patient is diagnosed with pregnancy-induced hypertension with severe edema and 24 weeks gestation. O13.1 represents pregnancy-induced hypertension and O12.00 represents edema of the ankles. These diagnostic codes accurately describe the patient's condition based on the given information.