C18.2Billable
Malignant neoplasm of ascending colon
Chapter 2: Neoplasms
Billable Code
C18.2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Referenced in Diagnoses
Conditions that use this ICD-10 code in their documentation
View documentation for adenocarcinoma colon
adenocarcinoma colon
View TemplatesAdenocarcinoma of the Colon
View documentation for adenocarcinoma of colon
adenocarcinoma of colon
View TemplatesMalignant Neoplasm of Colon
View documentation for carcinoma colon
carcinoma colon
View TemplatesCarcinoma of the Colon
View documentation for colon adenocarcinoma
colon adenocarcinoma
View TemplatesMalignant Neoplasm of Colon
View documentation for colorectal cancer
colorectal cancer
View TemplatesMalignant neoplasm of colon and rectum
View documentation for malignant neoplasm of colon
malignant neoplasm of colon
View TemplatesMalignant Neoplasm of Colon
View documentation for tumor colon
tumor colon
View TemplatesMalignant Neoplasm of Colon
Additional Information from Parent Codes
The following information may apply to this code from its parent codes in the ICD-10 hierarchy. This information is important for proper coding and classification.
Parent Codes Referenced:
Notes
8 items
Notes
From C00-D49:
- •Functional activity
- •All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
- •Morphology [Histology]
- •Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
- •Primary malignant neoplasms overlapping site boundaries
- •A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
- •Malignant neoplasm of ectopic tissue
- •Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).