C49.A0 – Gastrointestinal stromal tumor, unspecified site
ICD-10-CM 2027 diagnosis code · Malignant neoplasms of mesothelial and soft tissue
- Code
C49.A0(claims format:C49A0)- Description
- Gastrointestinal stromal tumor, unspecified site
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 2. Neoplasms (C00-D49)
- Block
- C45-C49 Malignant neoplasms of mesothelial and soft tissue
- Parent codes
- C49 › C49.A
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
C49 – Malignant neoplasm of other connective and soft tissue
- malignant neoplasm of blood vessel
- malignant neoplasm of bursa
- malignant neoplasm of cartilage
- malignant neoplasm of fascia
- malignant neoplasm of fat
- malignant neoplasm of ligament, except uterine
- malignant neoplasm of lymphatic vessel
- malignant neoplasm of muscle
- malignant neoplasm of synovia
- malignant neoplasm of tendon (sheath)
- Kaposi's sarcoma of soft tissue (C46.1)
- malignant neoplasm of heart (C38.0)
- malignant neoplasm of peripheral nerves and autonomic nervous system (C47.-)
- malignant neoplasm of peritoneum (C48.2)
- malignant neoplasm of retroperitoneum (C48.0)
- malignant neoplasm of uterine ligament (C57.3)
- mesothelioma (C45.-)
Index terms for C49.A0
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in C49.A
- C49.A1 – Gastrointestinal stromal tumor of esophagusBillable
- C49.A2 – Gastrointestinal stromal tumor of stomachBillable
- C49.A3 – Gastrointestinal stromal tumor of small intestineBillable
- C49.A4 – Gastrointestinal stromal tumor of large intestineBillable
- C49.A5 – Gastrointestinal stromal tumor of rectumBillable
- C49.A9 – Gastrointestinal stromal tumor of other sitesBillable
Frequently asked questions
What is ICD-10 code C49.A0?
C49.A0 is the ICD-10-CM code for gastrointestinal stromal tumor, unspecified site, in the block C45-C49 (Malignant neoplasms of mesothelial and soft tissue).
Is C49.A0 a billable code?
Yes. C49.A0 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does C49.A0 belong to?
It belongs to category C49 – Malignant neoplasm of other connective and soft tissue.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.