DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

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

  • Header · not billable

D13 is not billable. The category heads 11 billable codes in FY2027, grouped under 9 subdivisions.

Index → code

  • Cholangioma → D13.4
  • Hepatocholangioma, benign → D13.4
  • Islet cell tumor, pancreas → D13.7

Where it sits

  1. Chapter 2 Neoplasms (C00-D49)
  2. D10-D36 Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
  3. D13 Benign neoplasm of other and ill-defined parts of digestive system
Billable codes
11
Subdivisions
9
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
38

Codes in D13

  1. D13.0
    Benign neoplasm of esophagus
    Billable
  2. D13.1
    Benign neoplasm of stomach
    Billable
    Excludes1 1

    Excludes1

    • benign carcinoid tumor of the stomach (D3A.092) D3A.092
  3. D13.2
    Benign neoplasm of duodenum
    Billable
    Excludes1 1

    Excludes1

    • benign carcinoid tumor of the duodenum (D3A.010) D3A.010
  4. D13.3
    Benign neoplasm of other and unspecified parts of small intestine
    Header
    Excludes1 2

    Excludes1

    • benign carcinoid tumors of the small intestine (D3A.01-) D3A.01
    • benign neoplasm of ileocecal valve (D12.0) D12.0
  5. D13.30
    Benign neoplasm of unspecified part of small intestine
    Billable
  6. D13.39
    Benign neoplasm of other parts of small intestine
    Billable
  7. D13.4
    Benign neoplasm of liver
    Billable
    Inclusion terms 1

    Inclusion terms

    • Benign neoplasm of intrahepatic bile ducts
  8. D13.5
    Benign neoplasm of extrahepatic bile ducts
    Billable
  9. D13.6
    Benign neoplasm of pancreas
    Billable
    Excludes1 1

    Excludes1

    • benign neoplasm of endocrine pancreas (D13.7) D13.7
  10. D13.7
    Benign neoplasm of endocrine pancreas
    Billable
    Inclusion terms 2, Use additional code 1

    Inclusion terms

    • Islet cell tumor
    • Benign neoplasm of islets of Langerhans

    Use additional code

    • code to identify any functional activity.
  11. D13.9
    Benign neoplasm of ill-defined sites within the digestive system
    Header
  12. D13.91
    Familial adenomatous polyposis
    Billable
    Code also 3

    Code also

    • associated conditions, such as:
    • benign neoplasm of colon (D12.6) D12.6
    • malignant neoplasm of colon (C18.-) C18
  13. D13.99
    Benign neoplasm of ill-defined sites within the digestive system
    Billable
    Inclusion terms 3

    Inclusion terms

    • Benign neoplasm of digestive system NOS
    • Benign neoplasm of intestine NOS
    • Benign neoplasm of spleen

Sources of each column.

Instructions

At D13

Excludes1

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

Notes that also apply

Chapter 2 instructions (Notes 8): printed on the chapter 2 page.

Index entries

  • Cholangioma → D13.4
  • Hepatocholangioma, benign → D13.4
  • Islet cell tumor, pancreas → D13.7
  • Paragangliomagangliocytic → D13.2
  • Adenomabile duct → D13.4
  • Adenomahepatocellular → D13.4
  • Adenomaliver cell → D13.4
  • Cystadenomabile duct → D13.4
  • Hepatoma (malignant)benign → D13.4
  • Nesidioblastomapancreas → D13.7
  • Nesidioblastomaunspecified site → D13.7
  • Polyp, polypusstomachadenomatous → D13.1
  • Paragangliomagangliocyticunspecified site → D13.2
  • Adenomabile ductintrahepatic → D13.4
  • Adenomabile ductunspecified site → D13.4
  • Teratoma (solid)liveradult, benign, cystic, differentiated type or mature → D13.4
  • Adenomabile ductcommon → D13.5
  • Adenomabile ductextrahepatic → D13.5
  • Adenomamicrocysticpancreas → D13.6
  • Adenomamicrocysticunspecified site → D13.6
  • Adenomaalpha-cellpancreas → D13.7
  • Adenomaalpha-cellunspecified site → D13.7
  • Adenomabeta-cellpancreas → D13.7
  • Adenomabeta-cellunspecified site → D13.7
  • Adenomaislet cellpancreas → D13.7
  • Adenomaislet cellunspecified site → D13.7
  • Glucagonomapancreasbenign → D13.7
  • Glucagonomaunspecified sitebenign → D13.7
  • Insulinomapancreasbenign → D13.7
  • Insulinomaunspecified sitebenign → D13.7
  • Tumoralpha-cellpancreas → D13.7
  • Tumoralpha-cellunspecified site → D13.7
  • Tumorbeta-cellpancreas → D13.7
  • Tumorbeta-cellunspecified site → D13.7
  • Tumorislet cellpancreas → D13.7
  • Tumorislet cellunspecified site → D13.7
  • Polyposisfamilialadenomatous → D13.91
  • Polyposisintestinaladenomatous → D13.91

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