When is ICD-10 code D3A.02 used?

Doctors, hospitals, and insurers may use ICD-10 code D3A.02 when recording benign carcinoid tumors of the appendix, large intestine, and rectum in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code D3A.02 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10

ICD-10 Code D3A.02: Benign carcinoid tumors of the appendix, large intestine, and rectum

Name: ICD-10 Code D3A.02: Benign carcinoid tumors of the appendix, large intestine, and rectum
Creator: HealthAssure Clinical Team
Published: 2026-05-21T06:04:04.193Z

D3A.02 is an ICD-10 diagnosis entry used to group records related to Benign carcinoid tumors of the appendix, large intestine, and rectum. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Neoplasms (C00-D49).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Neoplasms (C00-D49).

When is it used?

May be used when a clinician documents benign carcinoid tumors of the appendix, large intestine, and rectum in a patient's medical record.
May appear in hospital records, claims, referrals, and clinical documentation.
This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

A code alone does not explain severity, treatment plan, or outcome.
A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter

2Neoplasms (C00-D49)

block

D37-D48Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes

block

D3ABenign neuroendocrine tumors (D3A)

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

OncologistGeneral Physician

Sibling codes

D3A.00Benign carcinoid tumor of unspecified sitebillable D3A.01Benign carcinoid tumors of the small intestine D3A.09Benign carcinoid tumors of other sites

Coding guidelines

Common synonyms

Benign carcinoid tumors of the appendix, large intestine, and rectum

Frequently asked questions

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.