Non-Billable / Non-Specific Code
ICD-10-CM C26 is the diagnosis code for Malignant neoplasm of other and ill-defined digestive organs. This code falls under the section "Malignant neoplasms of digestive organs" within Chapter 2 — Neoplasms (C00-D49). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as C26. They are mutually exclusive:
Understanding where C26 sits in the ICD-10-CM classification helps ensure proper coding:
No, C26 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
C26 is the ICD-10-CM diagnosis code for "Malignant neoplasm of other and ill-defined digestive organs". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
C26 is located in Section C15-C26 — "Malignant neoplasms of digestive organs" within Chapter 2 of the ICD-10-CM Tabular List.
C26 has 3 sub-code(s) that provide more specific detail: C26.0, C26.1, C26.9.
Use C26 when the patients documented diagnosis matches "Malignant neoplasm of other and ill-defined digestive organs" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Malignant neoplasm of other and ill-defined digestive organs is C26.
No, C26 is non-billable. Use a more specific sub-code for primary diagnosis billing.
C26 is in Chapter 2 of the ICD-10-CM Tabular List.
Type 1 Excludes for C26 include: malignant neoplasm of peritoneum and retroperitoneum (C48.-).
Yes, C26 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.