Benign neoplasm of other and ill-defined parts of digestive system (D13) ICD-10-CM
The D13 code range covers benign neoplasm of other and ill-defined parts of digestive system with 14 ICD-10-CM diagnosis codes. 11 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- benign stromal tumors of digestive system D21.4
Codes in the D13 Range 14 codes · 11 billable
- D13 Benign neoplasm of other and ill-defined parts of digestive systemNon-billable
- D13.0 Benign neoplasm of esophagus
- D13.1 Benign neoplasm of stomach
- D13.2 Benign neoplasm of duodenum
- D13.3 Benign neoplasm of other and unspecified parts of small intestineNon-billable
- D13.30 Benign neoplasm of unspecified part of small intestine
- D13.39 Benign neoplasm of other parts of small intestine
- D13.4 Benign neoplasm of liver
- D13.5 Benign neoplasm of extrahepatic bile ducts
- D13.6 Benign neoplasm of pancreas
- D13.7 Benign neoplasm of endocrine pancreas
- D13.9 Benign neoplasm of ill-defined sites within the digestive systemNon-billable
- D13.91 Familial adenomatous polyposis
- D13.99 Benign neoplasm of ill-defined sites within the digestive system
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the D13 range.
Adenoma, Bile Duct
A benign tumor of the intrahepatic bile ducts.
Adenomatous Polyposis Coli
A polyposis syndrome due to an autosomal dominant mutation of the APC genes (GENES, APC) on CHROMOSOME 5. The syndrome is characterized by the development of hundreds of ADENOMATOUS POLYPS in the COLON and RECTUM of affected individuals by early adulthood.
Benign Duodenal Neoplasm
A neoplasm that arises from the duodenum and is characterized by the absence of atypical or malignant cytological and architectural features, and absence of invasive features or metastatic potential..
Benign Esophageal Neoplasm
A neoplasm that arises from the esophageal wall and is characterized by the absence of atypical or malignant cytological and architectural features, and absence of invasive features or metastatic potential.
Benign Gastric Neoplasm
A neoplasm that arises from the stomach and is characterized by the absence of atypical or malignant cytological and architectural features, and absence of invasive features or metastatic potential.
Benign Pancreatic Neoplasm
A neoplasm that arises from the pancreas and is characterized by the absence of atypical or malignant cytological and architectural features, and absence of invasive features or metastatic potential.
About the D13 Code Range
These benign growths occur in specified parts of the digestive system or at sites within it that are not clearly defined.
The subdivisions separate the esophagus, stomach, duodenum (part of the small intestine), small intestine, liver, bile ducts outside the liver, and pancreas. D13.3 splits small-intestine growths into other and unspecified sites. The pancreas has separate subdivisions for pancreas and endocrine pancreas. Under D13.9, the codes distinguish familial adenomatous polyposis from benign growths at ill-defined digestive sites.
Questions About This Page
How many billable codes are in the D13 range?
Of the 14 codes in this range, 11 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the D13 range classify?
The range classifies benign neoplasm of other and ill-defined parts of digestive system. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
