Final answer:
The correct CPT code for an extensive drainage of an abscess of a deep inguinal lymph node is 10060.
Step-by-step explanation:
The correct CPT code for the procedure of an extensive drainage of an abscess of a deep inguinal lymph node that Tom Tighter underwent is code 10060.
This code is designated for incision and drainage of an abscess (e.g., carbuncle, suppurative hidradenitis, cutaneous or subcutaneous abscess, cyst, furuncle, or paronychia); simple or single. The procedure performed by Dr. Gon fits within the parameters set for this CPT code as it involved drainage of a lymph node abscess.