Benign neoplasm of colon, rectum, anus and anal canal (D12)
The ICD-10 code for benign neoplasm of colon, rectum, anus, and anal canal is D12, with more specific codes assigned based on the exact location of the growth. These codes are used to identify and classify non-cancerous tumors, such as polyps or adenomas, in different parts of the large intestine, rectum, and anus.
This section covers benign tumors in areas including the cecum (D12.0), appendix (D12.1), ascending colon (D12.2), transverse colon (D12.3), descending colon (D12.4), sigmoid colon (D12.5), rectosigmoid junction (D12.7), rectum (D12.8), and anus or anal canal (D12.9). For example, common terms like "polyp of cecum" or "adenoma of sigmoid colon" correspond to specific codes like D12.0 and D12.5, respectively. Using these precise ICD-10 codes helps medical coders document benign growths accurately for appropriate patient management, billing, and statistical purposes.
Neoplasms (C00–D49)
Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
D12 Benign neoplasm of colon, rectum, anus and anal canal
- D12.0 Benign neoplasm of cecum
- D12.1 Benign neoplasm of appendix
- D12.2 Benign neoplasm of ascending colon
- D12.3 Benign neoplasm of transverse colon
- D12.4 Benign neoplasm of descending colon
- D12.5 Benign neoplasm of sigmoid colon
- D12.6 Benign neoplasm of colon, unspecified
- D12.7 Benign neoplasm of rectosigmoid junction
- D12.8 Benign neoplasm of rectum
- D12.9 Benign neoplasm of anus and anal canal
Benign neoplasm of colon, rectum, anus and anal canal (D12)
Instructional Notations
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Clinical Terms
The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.
Appendiceal Neoplasms
Tumors or cancer of the APPENDIX.
Appendix
A worm-like blind tube extension from the CECUM.
Colon
The segment of LARGE INTESTINE between the CECUM and the RECTUM. It includes the ASCENDING COLON; the TRANSVERSE COLON; the DESCENDING COLON; and the SIGMOID COLON.
Gardner Syndrome
A variant of ADENOMATOUS POLYPOSIS COLI caused by mutation in the APC gene (GENES, APC) on CHROMOSOME 5. It is characterized by not only the presence of multiple colonic polyposis but also extracolonic ADENOMATOUS POLYPS in the UPPER GASTROINTESTINAL TRACT; the EYE; the SKIN; the SKULL; and the FACIAL BONES; as well as malignancy in organs other than the GI tract.
