C49.A0: Gastrointestinal stromal tumor, unspecified site
C49.A0 is the billable ICD-10-CM diagnosis code for Gastrointestinal stromal tumor, unspecified site. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code C49.A0?
C49.A0 is the ICD-10-CM diagnosis code for Gastrointestinal stromal tumor, unspecified site. It belongs to category C49 (Malignant neoplasm of other connective and soft tissue).
Is C49.A0 a billable code?
Yes. C49.A0 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does C49.A0 belong to?
C49.A0 is part of ICD-10-CM category C49 — Malignant neoplasm of other connective and soft tissue, which has 40 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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