D12.6 vs K51.4
D12.6 (Benign neoplasm of colon, unspecified) compared with K51.4 (Inflammatory polyps of colon), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. D12.6 carries an Excludes2 note covering K51.4: “inflammatory polyp of colon (K51.4-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Yes, when both are documented. K51.4 carries an Excludes2 note covering D12.6: “adenomatous polyp of colon (D12.6)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Yes, when both are documented. K51.4 carries an Excludes2 note covering D12.6: “polyposis of colon (D12.6)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| D12.6Benign neoplasm of colon, unspecified | K51.4Inflammatory polyps of colon | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | C00-D49 — Neoplasms (C00-D49) | K00-K95 — Diseases of the Digestive System (K00-K95) |
| Definition | Benign neoplasm of colon, unspecified is a billable ICD-10-CM diagnosis code (D12.6). | Inflammatory polyps of colon is a non-billable ICD-10-CM category code (K51.4). |
| Includes | Adenomatosis of colon Benign neoplasm of large intestine NOS Polyposis (hereditary) of colon | noninfective inflammatory bowel disease |
| Use additional code | — | code to identify any associated fistulas, if applicable: anal fistula (K60.3-) anorectal fistula (K60.5-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources