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ICD-10 Coding for Gastrointestinal Stromal Tumor(C49.A0, C15.9, C16.9)

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Comprehensive guide to ICD-10 coding for GIST, including site-specific codes, documentation requirements, and clinical validation criteria.

Also known as:
GISTGI Stromal Tumorgastrointestinal tumor
Related ICD-10 Code Ranges

Complete code families applicable to Gastrointestinal Stromal Tumor

C00-D49Primary Range

Neoplasms

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescription
C49.A0Gastrointestinal stromal tumor of esophagus
C49.A1Gastrointestinal stromal tumor of stomach
Primary ICD-10-CM Codes
Gastrointestinal stromal tumor, unspecified site
C49.A0Billable
Differential Codes

Alternative codes to consider when ruling out similar conditions

Malignant neoplasm of esophagus, unspecifiedC15.9
Malignant neoplasm of stomach, unspecifiedC16.9

Documentation & Coding Risks

Avoid these common issues when documenting Gastrointestinal Stromal Tumor.

Omitting CD117 status in documentation

Impact

Clinical: May lead to incorrect diagnosis and treatment, Regulatory: Non-compliance with coding standards, Financial: Potential claim denials

Mitigation

Ensure CD117 status is included in pathology reports, Cross-check with immunohistochemistry results

Using unspecified codes for GIST without site confirmation

Impact

Reimbursement: Potential denial of claims due to lack of specificity, Compliance: Non-compliance with coding guidelines, Data Quality: Inaccurate data for clinical research and statistics

Mitigation

Ensure site-specific documentation through imaging or biopsy reports.

Site-specific coding

Impact

Failure to document the specific site of GIST can lead to audit issues.

Mitigation

Ensure thorough documentation of tumor location in all reports.

Frequently Asked Questions

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with C49.A0.