Benign neuroendocrine tumors (D3A) ICD-10-CM
The D3A code range covers benign neuroendocrine tumors with 27 ICD-10-CM diagnosis codes. 22 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
- any associated multiple endocrine neoplasia [MEN] syndromes E31.2
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
- code to identify any associated endocrine syndrome, such as:
- carcinoid syndrome E34.00
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- benign pancreatic islet cell tumors D13.7
Codes in the D3A Range 27 codes · 22 billable
- D3A Benign neuroendocrine tumorsNon-billable
- D3A.0 Benign carcinoid tumorsNon-billable
- D3A.00 Benign carcinoid tumor of unspecified site
- D3A.01 Benign carcinoid tumors of the small intestineNon-billable
- D3A.010 Benign carcinoid tumor of the duodenum
- D3A.011 Benign carcinoid tumor of the jejunum
- D3A.012 Benign carcinoid tumor of the ileum
- D3A.019 Benign carcinoid tumor of the small intestine, unspecified portion
- D3A.02 Benign carcinoid tumors of the appendix, large intestine, and rectumNon-billable
- D3A.020 Benign carcinoid tumor of the appendix
- D3A.021 Benign carcinoid tumor of the cecum
- D3A.022 Benign carcinoid tumor of the ascending colon
- D3A.023 Benign carcinoid tumor of the transverse colon
- D3A.024 Benign carcinoid tumor of the descending colon
- D3A.025 Benign carcinoid tumor of the sigmoid colon
- D3A.026 Benign carcinoid tumor of the rectum
- D3A.029 Benign carcinoid tumor of the large intestine, unspecified portion
- D3A.09 Benign carcinoid tumors of other sitesNon-billable
- D3A.090 Benign carcinoid tumor of the bronchus and lung
- D3A.091 Benign carcinoid tumor of the thymus
- D3A.092 Benign carcinoid tumor of the stomach
- D3A.093 Benign carcinoid tumor of the kidney
- D3A.094 Benign carcinoid tumor of the foregut, unspecified
- D3A.095 Benign carcinoid tumor of the midgut, unspecified
- D3A.096 Benign carcinoid tumor of the hindgut, unspecified
- D3A.098 Benign carcinoid tumors of other sites
- D3A.8 Other benign neuroendocrine tumors
About the D3A Code Range
The ICD-10-CM codes beginning with D3A classify benign neuroendocrine tumors, including various types of benign carcinoid tumors and other noncancerous neuroendocrine growths. These codes are used to identify tumors that arise from hormone-producing cells but are non-malignant and can occur in multiple body sites.
This coding range covers benign carcinoid tumors located in different parts of the digestive system such as the small intestine, appendix, large intestine, and rectum, as well as less common sites like the bronchus, lung, thymus, stomach, and kidney. For example, D3A.01 specifies benign carcinoid tumors of the small intestine with further subdivisions for the duodenum (D3A.010), jejunum (D3A.011), and ileum (D3A.012). The codes also distinguish unspecified tumor sites, allowing precise documentation when the tumor location or subtype is unclear. Additionally, D3A.8 includes other benign neuroendocrine tumors with several synonyms like neuroendocrine neoplasm and gastrointestinal hormone-secreting endocrine tumor. This detailed classification aids medical coders in accurately capturing diagnoses of benign neuroendocrine neoplasms, facilitating proper patient management and health record clarity.
Questions About This Page
How many billable codes are in the D3A range?
Of the 27 codes in this range, 22 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the D3A range classify?
The range classifies benign neuroendocrine tumors. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
