Malignant carcinoid tumors

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 4 more specific codes instead:

C7A.00 Malignant carcinoid tumor of unspecified site
C7A.01 Malignant carcinoid tumors of the small intestine (also a header)
C7A.02 Malignant carcinoid tumors of the appendix, large intestine, and rectum (also a header)
C7A.09 Malignant carcinoid tumors of other sites (also a header)

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2012 Added to the draft code set draft Malignant carcinoid tumors

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from C7A Malignant neuroendocrine tumors

Excludes2 - not included here

malignant pancreatic islet cell tumors (C25.4)
Merkel cell carcinoma (C4A.-)

Use additional code

code to identify any associated endocrine syndrome, such as:
carcinoid syndrome (E34.00)

Code also

any associated multiple endocrine neoplasia [MEN] syndromes (E31.2-)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Carcinoma > neuroendocrine
Tumor > neuroendocrine

Codes in the same group

Code	Description	Status
C7A.1	Malignant poorly differentiated neuroendocrine tumors	Valid
C7A.8	Other malignant neuroendocrine tumors	Valid