Valid for Submission
C78.4 is a billable diagnosis code used to specify a medical diagnosis of secondary malignant neoplasm of small intestine. The code C78.4 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.
The ICD-10-CM code C78.4 might also be used to specify conditions or terms like ampulla of vater tnm finding, malignant tumor of jejunum, malignant tumor of meckel's diverticulum, metastasis to small intestine of unknown primary, neoplasm of meckel's diverticulum , pt2: tumor invades duodenal wall , etc.
The following anatomical sites found in the Table of Neoplasms apply to this code given the correct histological behavior: duodenojejunal junction ; duodenum ; ileum ; intestine, intestinal small ; intestine, intestinal small duodenum ; intestine, intestinal small ileum ; intestine, intestinal small jejunum ; etc
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Ampulla of Vater TNM finding
- Malignant tumor of jejunum
- Malignant tumor of Meckel's diverticulum
- Metastasis to small intestine of unknown primary
- Neoplasm of Meckel's diverticulum
- pT2: Tumor invades duodenal wall
- Secondary malignant neoplasm of duodenum
- Secondary malignant neoplasm of ileum
- Secondary malignant neoplasm of jejunum
- Secondary malignant neoplasm of Meckel's diverticulum
- Secondary malignant neoplasm of small intestine
- T2: Ampulla tumor invades duodenal wall
- T3: Pancreatic tumor extends directly to any of the following: duodenum; bile duct; peripancreatic tissues
- Tumor invades beyond pancreatic capsule to adjacent structures AND/OR organs
- Tumor invades beyond pancreatic capsule to duodenum
Diagnostic Related Groups - MS-DRG Mapping
|MS-DRG||MS-DRG Title||MCD||Relative Weight|
|374||DIGESTIVE MALIGNANCY WITH MCC||06||2.0679|
|375||DIGESTIVE MALIGNANCY WITH CC||06||1.2049|
|376||DIGESTIVE MALIGNANCY WITHOUT CC/MCC||06||0.8952|
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.
Convert C78.4 to ICD-9 Code
Table of Neoplasms
The code C78.4 is included in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.
Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.
|»Meckel diverticulum, malignant||C17.3||C78.4||D01.49||D13.39||D37.2||D49.0|
Information for Patients
Your small intestine is part of your digestive system. It is a long tube that connects your stomach to your large intestine. Intestinal cancer is rare, but eating a high-fat diet or having Crohn's disease, celiac disease, or a history of colonic polyps can increase your risk.
Possible signs of small intestine cancer include
- Abdominal pain
- Weight loss for no reason
- Blood in the stool
- A lump in the abdomen
Imaging tests that create pictures of the small intestine and the area around it can help diagnose intestinal cancer and show whether it has spread.
Surgery is the most common treatment. Additional options include chemotherapy, radiation therapy, or a combination.
NIH: National Cancer Institute
[Learn More in MedlinePlus]