ICD-10-CM › C00-D49 › C7A › C codes › C7A

C7A

Malignant neuroendocrine 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 3 more specific codes instead:

  • C7A.0 Malignant carcinoid tumors (also a header)
  • C7A.1 Malignant poorly differentiated neuroendocrine tumors
  • C7A.8 Other malignant neuroendocrine tumors

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.

  1. FY2012 Added to the draft code set draft Malignant neuroendocrine 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.

This code

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.