2027 ICD-10-CM Diagnosis Code D3ABenign neuroendocrine tumors

ICD-10-CM Codes›C00–D49›D3A›D3A

ICD-10-CM D3A
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

D3A is a non-billable ICD-10-CM category code for benign neuroendocrine tumors, so it cannot be submitted on claims. Use a more specific code from this category instead, such as D3A.00, D3A.010, D3A.011, and D3A.012.

Code Identity

ICD-10-CM Code
D3A
Billable Status
No — Non-Billable Category
Code Describes
Benign neuroendocrine tumors
Short Description
Benign neuroendocrine tumors
Same as the full description in the CMS dataset.
Chapter
D3A
Benign neuroendocrine tumors

Code Classification

ChapterC00–D49Neoplasms
SectionD3ABenign neuroendocrine tumors
CategoryD3ABenign neuroendocrine tumors
This CodeD3ABenign neuroendocrine tumors

Specific Coding for Benign neuroendocrine tumorsOverview

Non-specific codes like D3A require more characters. Use one of these billable codes instead:

  • D3A.0 for Benign carcinoid tumors

  • Use D3A.00 for Benign carcinoid tumor of unspecified site

  • D3A.01 for Benign carcinoid tumors of the small intestine

  • D3A.02 for Benign carcinoid tumors of the appendix, large intestine, and rectum

  • D3A.09 for Benign carcinoid tumors of other sites

  • Use D3A.8 for Other benign neuroendocrine tumors

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to D3A: its own notes plus those printed at block D37-D48 and Chapter 2. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block D37-D48 Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes applies to 137 codes
  • neoplasms of unspecified behavior (D49.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

  • benign pancreatic islet cell tumors (D13.7)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

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

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

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

Notes

General instructions on how these codes are used.

From Block D37-D48 Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes applies to 137 codes
  • Categories D37-D44, and D48 classify by site neoplasms of uncertain behavior, i.e., histologic confirmation whether the neoplasm is malignant or benign cannot be made.
From Chapter 2 (C00-D49) Neoplasms applies to 1,730 codes
  • 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).

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name D3A, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming D3A: its condition is not part of those codes, and both may be reported when the patient has both.

  • D49 Neoplasms of unspecified behavior
    neoplasms of uncertain behavior (D37-D44, D48) names D37-D44, which includes this code

Notes 1

These notes mention D3A.

  • Block D37-D48 Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes
    Categories D37-D44, and D48 classify by site neoplasms of uncertain behavior, i.e., histologic confirmation whether the neoplasm is malignant or benign cannot be made. names D37-D44, which includes this code

Patient EducationClinical

Benign Tumors

Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About D3AOverview

What is the ICD-10 code for benign neuroendocrine tumors?

D3A is the ICD-10-CM category for benign neuroendocrine tumors, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is D3A (Benign neuroendocrine tumors) a billable code?

No. This is a category header that groups the codes for benign neuroendocrine tumors, and headers cannot be submitted on claims. Claims for benign neuroendocrine tumors need a more specific code from this category, such as D3A.00, D3A.010, and D3A.011.

Can D3A be reported with a code from D49?

Not as a rule. The Excludes1 note at block D37-D48, which applies to D3A, lists "neoplasms of unspecified behavior (D49.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

Does D3A need an additional code?

When the condition applies, yes. The Use Additional Code note reads: code to identify any associated endocrine syndrome, such as: carcinoid syndrome (E34.00). The additional code is reported after D3A.