D12.6 ICD-10-CM Code: Benign neoplasm of colon, unspecified
D12.6 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC Buddy coding tools
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FY 2026 Apr update / Neoplasms (C00-D49) / Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
D12.6
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceBenign neoplasm of colon, unspecified
A benign (non-cancerous) tumor of the colon when the specific segment of the colon cannot be determined or is not specified.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
HistoricalHistorical
Not used for CY2026 payment
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
Official- Adenomatosis of colon
- Benign neoplasm of large intestine NOS
- Polyposis (hereditary) of colon
Excludes 2
Official- inflammatory polyp of colon (K51.4-)
- benign carcinoid tumors of the large intestine and rectum (D3A.02-)Inherited from D12
- polyp of colon NOS (K63.5)Inherited from D12
Related Codes
Includes
OfficialNo Includes notes are included in this display for D12.6. Check the code and parent instructions in the Code Book.
Excludes 1
OfficialNo Excludes 1 notes are included in this display for D12.6. Check the code and parent instructions in the Code Book.
Code First
OfficialNo Code First sequencing instructions are included in this display for D12.6. Check the code and parent instructions in the Code Book.
Use Additional
OfficialNo Use Additional Code instructions are included in this display for D12.6. Check the code and parent instructions in the Code Book.
Code Also
OfficialNo Code Also instructions are included in this display for D12.6. Check the code and parent instructions in the Code Book.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is D12.6 an HCC code?
No. D12.6 is a billable ICD-10-CM code with no mapping under the CMS-HCC V28 or V24 community payment models, and none under the ESRD, Part D RxHCC, or HHS-HCC models.
- Code
- D12.6
- Description
- Benign neoplasm of colon, unspecified
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
D12.6 is the ICD-10-CM diagnosis code for benign neoplasm of colon, unspecified. A benign (non-cancerous) tumor of the colon when the specific segment of the colon cannot be determined or is not specified. D12.6 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering benign neoplasms, except benign neuroendocrine tumors (d10-d36).
D12.6 is a billable ICD-10-CM code, but the current payload does not show a mapping under the CMS-HCC V28 or V24 community payment models, and none under the ESRD, Part D RxHCC, or HHS-HCC models. Do not assign risk adjustment value from this page when no source-backed mapping is shown; verify the applicable model and payment year.
Use this code only when the exact colonic location is unknown; query the provider for more specific site information if available.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for D12.6 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use this code only when the exact colonic location is unknown; query the provider for more specific site information if available
- •This is a less specific code, so attempt to obtain clarification from colonoscopy or imaging reports
Excludes 2, Not included here, may code separately
- inflammatory polyp of colon (K51.4-)