ICD-10-CM 2027
ICD-10 code for Islet cell tumor
From the official ICD-10-CM alphabetic index entry “Islet cell tumor, pancreas”. Page updated September 29, 2026.
About coding Islet cell tumor
The ICD-10-CM code for Islet cell tumor is D13.7 (Benign neoplasm of endocrine pancreas).
Within D13 (benign neoplasm of other and ill-defined parts of digestive system), D13.7 is specifically for benign neoplasm of endocrine pancreas. Related codes cover esophagus (D13.0), stomach (D13.1), duodenum (D13.2), other and unspecified parts of small intestine (D13.3), liver (D13.4), extrahepatic bile ducts (D13.5), pancreas (D13.6) and ill-defined sites within the digestive system (D13.9).
Use an additional code to identify any functional activity.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about Islet cell tumor ICD-10 codes
What is the ICD-10 code for Islet cell tumor?
- D13.7 — Benign neoplasm of endocrine pancreas.
Is D13.7 billable?
- Yes. D13.7 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can D13.7 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict D13.7 as a principal diagnosis.
Is D13.7 a CC or MCC?
- No. D13.7 is neither a CC nor an MCC under MS-DRG v44.0.