ICD-10 Code D13 – Benign neoplasm of other and ill-defined parts of digestive system (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D13 – Benign neoplasm of other and ill-defined parts of digestive system
What it is
D13 identifies a noncancerous growth in digestive organs that are not named by a more specific benign neoplasm code. You should use it when documentation confirms a benign tumor in an other or ill-defined digestive site.
Clinical signs
Clinical features vary; refer to documentation. Benign digestive neoplasms may be found incidentally, cause local mass effect, or be described on imaging, endoscopy, or pathology as nonmalignant.
When to use this code
Use D13 when the provider documents a benign neoplasm in a digestive system location that is not separately indexed to a more specific code. It also fits when the site is described as ill-defined or unspecified within the digestive tract. Check the record for the exact anatomic site and any pathology confirmation.
Do not use for
Do not use D13 for malignant, uncertain, or metastatic digestive tumors. Do not use it when documentation supports a more specific benign neoplasm code for the exact organ or site.
Coding tip
Always code the most specific digestive site documented; if the location is unclear, check documentation before defaulting to D13.