Code

Description

00

No surgical diagnostic or staging procedure

01

Incisional, needle, or aspiration biopsy of other than primary site (code microscopic residual disease or no residual disease as surgery of other regional site[s], distant site[s], or distant lymph nodes[s])

02

Incisional, needle, or aspiration biopsy of primary site (code microscopic residual disease or no residual disease as surgery of primary site)

03

Exploratory surgery only (no biopsy)

04

Bypass surgery or ostomy only (no biopsy)

05

Combination of 03 plus 01 or 02

06

Combination of 04 plus 01 or 02

07

Diagnostic or staging procedure, NOS

09

Unknown if diagnostic or staging procedure done