Wait, but the user might not have specific information, so I have to infer. The safest approach is to explain PGD in general, discuss its purpose, how it works, and then perhaps mention that in some contexts, such as in clinics, specific codes like PGD036 might be used as references for different procedures or categories. However, since there's no public database or standard coding for PGD procedures with numbers like 036, it's better to mention that codes may vary by institution and provide examples.