C25.9 Malignant neoplasm of pancreas, unspecified

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from C25 Malignant neoplasm of pancreas

Use additional code

• code to identify:
• alcohol abuse and dependence (F10.-)

Code also

• if applicable exocrine pancreatic insufficiency (K86.81)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 20 — Lung and Other Severe Cancers
• CMS-HCC V22: HCC 9 — Lung and Other Severe Cancers
• RxHCC V08: HCC 20 — Lung, Kidney, and Other Cancers; Secondary Cancer of Lymph Nodes and Other Sites
• ESRD V24: HCC 9

MS-DRG index

Defines the logic of DRG(s) 435-437 in MDC 07.

Approximate ICD-9-CM (GEMs)

• 157.9 Malignant neoplasm of pancreas, part unspecified

Diagnosis Index entries for C25.9

• Adenocarcinoma › islet cell › with exocrine, mixed › unspecified site
• Carcinoma (malignant) › islet cell › with exocrine, mixed › unspecified site

Nearby codes

• C25.2 Malignant neoplasm of tail of pancreas
• C25.3 Malignant neoplasm of pancreatic duct
• C25.4 Malignant neoplasm of endocrine pancreas
• C25.7 Malignant neoplasm of other parts of pancreas
• C25.8 Malignant neoplasm of overlapping sites of pancreas
• C25.9 Malignant neoplasm of pancreas, unspecified (this code)