D13.91 Familial adenomatous polyposis

Billable ICD-10-CM code, FY2026.

Code also

• associated conditions, such as:
• benign neoplasm of colon (D12.6)
• malignant neoplasm of colon (C18.-)

Applies from D13 Benign neoplasm of other and ill-defined parts of digestive system

Excludes1 (never code together)

• benign stromal tumors of digestive system (D21.4)

MS-DRG index

Defines the logic of DRG(s) 393-395 in MDC 06.

Diagnosis Index entries for D13.91

• Polyposis › familial › adenomatous
• Polyposis › intestinal › adenomatous

Nearby codes

• 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 system
• D13.91 Familial adenomatous polyposis (this code)
• D13.99 Benign neoplasm of ill-defined sites within the digestive system