SEER Inquiry System - Report
Produced: 10/15/2025 3:39 AM
Question 20000842
Inquiry Details
References:
#1: SEER App F, 2003+ Surg Codes, F-21. January 2003
#2: 2004 SEER Manual, C-441, C-429
Question:
Surgery of Primary Site--Skin: Explain the difference between code 30 and code 45.
Code 30 [Biopsy of primary tumor followed by a gross excision of the lesion]
Code 45 [Wide excision or re-excision of lesion or minor (local) amputation with margins more than 1 cm, NOS. Margins MUST be microscopically negative.]
Discussion:
Answer:
History:
For cases diagnosed 1998-2002: Explain the difference between codes 30 [biopsy followed by gross excision] and 40 [wide excision or re-excision of lesion or minor (local) amputation].
Code 30 is a biopsy or excision where the margins of excision are less than 1 cm. Code 40 is a wide excision where the margins of excision are 1 cm or more.