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v1.0.0
ICD-10 Guide
ICD-10 CodesChapter 2: NeoplasmsC17

C17

Billable

Malignant neoplasm of small intestine

Chapter 2:Neoplasms

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 C17 is a billable code used to indicate a diagnosis of malignant neoplasm of small intestine.

Key Diagnostic Point:

Malignant neoplasms of the small intestine are rare tumors that can arise from various types of cells within the small intestine, including adenocarcinomas, lymphomas, and neuroendocrine tumors. These tumors can present with a variety of symptoms, including abdominal pain, weight loss, gastrointestinal bleeding, and obstruction. The small intestine is divided into three sections: the duodenum, jejunum, and ileum, and malignancies can occur in any of these areas. Diagnosis often involves imaging studies such as CT scans or MRIs, endoscopy, and biopsy to confirm malignancy. Due to the rarity of these tumors, they can be challenging to diagnose, and symptoms may be nonspecific, leading to delays in treatment. The prognosis varies significantly based on the type of tumor, stage at diagnosis, and the patient's overall health. Treatment typically involves surgical resection, chemotherapy, and/or radiation therapy, depending on the tumor type and stage.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Rarity of small intestine malignancies leading to potential misdiagnosis.
  • Variety of tumor types (adenocarcinoma, lymphoma, neuroendocrine tumors) complicating coding.
  • Need for precise documentation of tumor location and type.
  • Potential for overlapping symptoms with benign conditions.

Audit Risk Factors

  • Inadequate documentation of tumor type and location.
  • Failure to specify the stage of malignancy.
  • Misclassification of tumor type (e.g., coding a lymphoma as an adenocarcinoma).
  • Lack of supporting imaging or biopsy reports.

Specialty Focus

Medical Specialties

Oncology

Documentation Requirements

Detailed pathology reports, imaging studies, and treatment plans.

Common Clinical Scenarios

Diagnosis and management of small intestine tumors, staging, and follow-up care.

Billing Considerations

Ensure accurate coding of tumor type and stage; multidisciplinary documentation is crucial.

Gastroenterology

Documentation Requirements

Endoscopy reports, biopsy results, and imaging studies.

Common Clinical Scenarios

Evaluation of gastrointestinal symptoms leading to diagnosis of malignancy.

Billing Considerations

Documentation must clearly differentiate between benign and malignant findings.

Coding Guidelines

Inclusion Criteria

Use C17 When
  • Follow official ICD
  • CM coding guidelines, ensuring accurate documentation of the tumor type, location, and stage
  • Include any relevant history of prior malignancies or treatments
  • Use additional codes for complications or associated conditions as necessary

Exclusion Criteria

Do NOT use C17 When
No specific exclusions found.

Related CPT Codes

44120CPT Code

Resection of small intestine

Clinical Scenario

Used in cases of malignant neoplasm requiring surgical intervention.

Documentation Requirements

Operative reports detailing the procedure and findings.

Specialty Considerations

Oncology and surgery documentation must align for accurate coding.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of small intestine malignancies, improving data accuracy and enabling better tracking of treatment outcomes. The granularity of ICD-10 codes helps in understanding the epidemiology of these rare tumors.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of small intestine malignancies, improving data accuracy and enabling better tracking of treatment outcomes. The granularity of ICD-10 codes helps in understanding the epidemiology of these rare tumors.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of small intestine malignancies, improving data accuracy and enabling better tracking of treatment outcomes. The granularity of ICD-10 codes helps in understanding the epidemiology of these rare tumors.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What are the common types of malignant neoplasms of the small intestine?

The most common types include adenocarcinomas, lymphomas, and neuroendocrine tumors. Each type has distinct characteristics and treatment protocols.

How can coders ensure accurate coding for small intestine malignancies?

Coders should ensure detailed documentation of the tumor type, location, and stage, and be familiar with the specific coding guidelines for each type of malignancy.