C17.9 Malignant neoplasm of small intestine, unspecified

ICD10CM code

#### Name of the Condition
- Malignant Neoplasm of Small Intestine, Unspecified
- Also known as Small Intestinal Cancer

#### Summary
Malignant neoplasm of the small intestine is a type of cancer that originates in the small intestine — the part of the gastrointestinal tract between the stomach and large intestine. Classified under the ICD code C17.9, it represents unspecified cancerous growth within this segment of the intestines.

#### Causes
The exact causes of small intestine cancer are not well understood. However, genetic mutations that transform normal cells into cancerous ones are believed to play a significant role.

#### Risk Factors
- Age: More common in individuals over 60.
- Gender: Slightly more prevalent in males.
- Genetic conditions: Familial adenomatous polyposis, Lynch syndrome.
- Lifestyle factors: Smoking and heavy alcohol use.
- Chronic conditions: Crohn’s disease, celiac disease.

#### Symptoms
- Abdominal pain or discomfort
- Unexplained weight loss
- Blood in stool or dark tarry stools
- Nausea and vomiting
- Fatigue and anemia resulting from internal bleeding

#### Diagnosis
- Imaging tests: CT scans, MRI, or barium X-rays.
- Endoscopy: Allows direct visualization and biopsy.
- Biopsy: Confirms malignancy through histological examination.
- Blood tests: Assess for anemia and other abnormalities.

#### Treatment Options
- Surgery: Primary treatment to remove the tumor.
- Chemotherapy: Used to destroy residual cancer cells.
- Radiation therapy: Occasionally used, often in conjunction with surgery or chemotherapy.
- Targeted therapies: Drugs that target specific aspects of cancer cells.

#### Prognosis and Follow-Up
- Prognosis varies depending on the stage at diagnosis.
- Regular follow-ups are critical to monitor for recurrence.
- Early-stage cancers have a better prognosis compared to advanced stages.

#### Complications
- Bowel obstruction
- Metastasis to other organs such as the liver
- Malnutrition due to impaired nutrient absorption

#### Lifestyle & Prevention
- Maintain a balanced diet rich in fruits and vegetables.
- Regular exercise to maintain a healthy body weight.
- Avoid smoking and limit alcohol consumption.
- Routine screening for individuals with genetic predispositions.

#### When to Seek Professional Help
- Persistent abdominal pain or changes in bowel habits.
- Any signs of gastrointestinal bleeding should prompt immediate medical evaluation.

#### Additional Resources
- American Cancer Society (cancer.org)
- National Cancer Institute (cancer.gov)
- Colon Cancer Alliance (ccalliance.org)

#### Tips for Medical Coders
- Ensure specificity by documenting the exact location and nature of the tumor for precise coding.
- Verify any additional codes for metastatic sites if applicable.
- Avoid confusion with benign neoplasms of the small intestine, which are coded differently.

Medical Policies and Guidelines for Malignant neoplasm of small intestine, unspecified

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