ICD-10-CM 2027 diagnosis code

D3A.0Benign carcinoid tumors

Not billable — use a more specific code

D3A.0 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About D3A.0

D3A.0 is the ICD-10-CM diagnosis code for benign carcinoid tumors. It belongs to category D3A (benign neuroendocrine tumors), block D3A (benign neuroendocrine tumors) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within D3A (benign neuroendocrine tumors), D3A.0 is specifically for benign carcinoid tumors. Related codes cover other benign neuroendocrine tumors (D3A.8).

To report this condition, pick the subcode that matches the documentation: D3A.00 (site), D3A.01 (of the small intestine), D3A.02 (of the appendix, large intestine, and rectum) and D3A.09 (of other sites).

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

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under D3A.0

Notes that apply from higher levels

Instructions written at a parent level also apply to D3A.0.

› From D3A Benign neuroendocrine tumors

Excludes2

benign pancreatic islet cell tumors (D13.7)

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-)

Broader instructions also apply from Chapter 2: Neoplasms.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about D3A.0

Is D3A.0 billable?: No. D3A.0 is a header code. Report one of its more specific subcodes instead.