C16.6
BillableMalignant neoplasm of greater curvature of stomach, unspecified
HCC Category Mapping
V28HCC 20 — Lung and Other Severe Cancers
0.000V24HCC 9 — Lung and Other Severe Cancers
0.973ESRDHCC 9 — Lung and Other Severe Cancers
0.000RxHCCHCC 22 — Cancer, Other Specified Sites
0.000What This Code Means
Cancer of the greater curvature of the stomach (the larger outer curve of the stomach) when the specific location is not further specified.
Coding Tips
- •Use this code only when the greater curvature is documented but no more specific anatomical site is identified
- •Consider requesting clarification on exact location if available, as it may impact staging and treatment
Clinical Significance
Cancer of the greater curvature of the stomach develops along the outer convex border of the stomach and may be associated with more advanced disease at presentation due to its anatomical relationship with the greater omentum and spleen. Greater curvature tumors can spread via the gastro-omental and splenic lymph node basins. Accurate coding of this specific location supports risk adjustment and reflects the distinct surgical considerations for this site.
Documentation Requirements
- ✓Documentation specifying greater curvature as the tumor location
- ✓Histological type and grade
- ✓Stage of disease including regional lymph node involvement
- ✓Relationship to adjacent structures (omentum, spleen)
- ✓Treatment status
Commonly Confused Codes
C16.5 — Lesser curvature: the lesser curvature is the inner (concave) border; greater curvature is the outer (convex) borderC16.2 — Body of stomach: if documentation specifies body location on greater curvature, consider which descriptor is more specificC16.8 — Overlapping sites: use if tumor extends beyond greater curvature to involve other distinct gastric regions
Code Hierarchy
└C16Malignant neoplasm of stomach└C16.6Malignant neoplasm of greater curvature of stomach, unspecified
└C16.6Malignant neoplasm of greater curvature of stomach, unspecified