D13.3 vs D3A.01
D13.3 (Benign neoplasm of other and unspecified parts of small intestine) compared with D3A.01 (Benign carcinoid tumors of the small intestine), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. D13.3 carries an Excludes1 note covering D3A.01: “benign carcinoid tumors of the small intestine (D3A.01-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| D13.3Benign neoplasm of other and unspecified parts of small intestine | D3A.01Benign carcinoid tumors of the small intestine | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | C00-D49 — Neoplasms (C00-D49) | C00-D49 — Neoplasms (C00-D49) |
| Definition | Benign neoplasm of other and unspecified parts of small intestine is a non-billable ICD-10-CM category code (D13.3). | Benign carcinoid tumors of the small intestine is a non-billable ICD-10-CM category code (D3A.01). |
| Use additional code | — | code to identify any associated endocrine syndrome, such as: carcinoid syndrome (E34.00) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources