C49.A9 Gastrointestinal stromal tumor of other sites
Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.
Applies from C49 Malignant neoplasm of other connective and soft tissue
Includes
- 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)
Excludes1 (never code together)
- malignant neoplasm of cartilage (of):
- articular (C40-C41)
- larynx (C32.3)
- nose (C30.0)
- malignant neoplasm of connective tissue of breast (C50.-)
Excludes2 (not included here)
- 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.-)
Risk adjustment (HCC)
- CMS-HCC V28: HCC 23 — Prostate, Breast, and Other Cancers and Tumors
- CMS-HCC V22: HCC 10 — Lymphoma and Other Cancers
- RxHCC V08: HCC 20 — Lung, Kidney, and Other Cancers; Secondary Cancer of Lymph Nodes and Other Sites
- ESRD V24: HCC 10
MS-DRG index
Defines the logic of DRG(s) 374-376 in MDC 06.
Approximate ICD-9-CM (GEMs)
171.5 Malignant neoplasm of connective and other soft tissue of abdomen (approximate)
Code annotations containing back-references to C49.A9
Back-references to C49
- Code First:
M63 Disorders of muscle in diseases classified elsewhere ("neoplasm (C49.-, C79.89, D21.-, D48.1-)")
Diagnosis Index entries for C49.A9
- Tumor › stromal › gastrointestinal › malignant › omentum
- Tumor › stromal › gastrointestinal › malignant › peritoneum
- Tumor › stromal › gastrointestinal › malignant › specified site NEC
- Tumor › stromal › gastrointestinal › specified site NEC
Nearby codes
C49.A1 Gastrointestinal stromal tumor of esophagusC49.A2 Gastrointestinal stromal tumor of stomachC49.A3 Gastrointestinal stromal tumor of small intestineC49.A4 Gastrointestinal stromal tumor of large intestineC49.A5 Gastrointestinal stromal tumor of rectumC49.A9 Gastrointestinal stromal tumor of other sites (this code)