C25.9 is the authoritative medical code for Malignant neoplasm of pancreas, unspecified. This classification is used in medical billing and clinical recording to specify the clinical criteria for malignant neoplasm of pancreas, unspecified (ICD-10-CM C25.9), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Malignant neoplasm of pancreas, unspecified is a billable ICD-10-CM diagnosis code C25.9. Excludes1 (not coded here): Kaposi's sarcoma of gastrointestinal sites C46.4. Excludes2 (not included here): gastrointestinal stromal tumors C49.A-. Use additional code: code to identify:; alcohol abuse and dependence F10.-. Code also: if applicable exocrine pancreatic insufficiency K86.81.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for C25.9 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- Kaposi's sarcoma of gastrointestinal sites C46.4
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- gastrointestinal stromal tumors C49.A-
Code Also
Additional codes that may be required to fully describe the encounter.
- if applicable exocrine pancreatic insufficiency K86.81
Use Additional Code
Supplementary codes the tabular list directs you to add.
- code to identify:
- alcohol abuse and dependence F10.-
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with C25.9?
Per Excludes1 instructions, C25.9 must not be reported with: Kaposi's sarcoma of gastrointestinal sites (C46.4).
Can C25.9 be reported alongside related conditions?
Per Excludes2 instructions, C25.9 and the following may both be reported when both are present: gastrointestinal stromal tumors (C49.A-).
Is an additional code needed with C25.9?
Use additional code(s) to specify: code to identify:; alcohol abuse and dependence (F10.-).
Codes in This Family (8)
Official ICD-10-CM classifications in the same code family as C25.9, with their registry titles.
- C25 — Malignant neoplasm of pancreas
- C25.0 — Malignant neoplasm of head of pancreas
- C25.1 — Malignant neoplasm of body of pancreas
- 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
Indexed Clinical Terms (2)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- Adenocarcinoma, islet cell, with exocrine, mixed, unspecified site
- Carcinoma (malignant), islet cell, with exocrine, mixed, unspecified site
Neoplasm Table Sites (1)
Anatomical sites from the official ICD-10-CM Table of Neoplasms that map to this code, with the matching behavior column.
- Neoplasm, neoplastic, pancreas — Malignant, Primary
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code C22.9
Malignant neoplasm of liver, not specified as primary or secondary
ICD Code C26.9
Malignant neoplasm of ill-defined sites within the digestive system