D13.91 ICD-10-CM Code: Familial adenomatous polyposis
D13.91 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · free HCC coding tools
HCC Buddy Code Card
Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.
FY 2026 Apr update / Neoplasms (C00-D49) / Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
D13.91
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceFamilial adenomatous polyposis
An inherited genetic condition where multiple benign polyps develop throughout the colon and digestive tract, with high risk of developing colorectal cancer.
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
OfficialNo inclusion terms are included in this display for D13.91. Check the code and parent instructions in the Code Book.
Excludes 2
OfficialNo Excludes 2 notes are included in this display for D13.91. Check the code and parent instructions in the Code Book.
Related Codes
Includes
OfficialNo Includes notes are included in this display for D13.91. Check the code and parent instructions in the Code Book.
Excludes 1
Official- benign stromal tumors of digestive system (D21.4)Inherited from D13
Code First
OfficialNo Code First sequencing instructions are included in this display for D13.91. Check the code and parent instructions in the Code Book.
Use Additional
OfficialNo Use Additional Code instructions are included in this display for D13.91. Check the code and parent instructions in the Code Book.
Code Also
Official- associated conditions, such as:
- benign neoplasm of colon (D12.6)
- malignant neoplasm of colon (C18.-)
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 D13.91 an HCC code?
No. D13.91 is a billable ICD-10-CM code with no mapping under the current CMS-HCC V28 community payment model, and none under the ESRD, Part D RxHCC, or HHS-HCC models.
- Code
- D13.91
- Description
- Familial adenomatous polyposis
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
Get the V28 mapping + MEAT cheat sheet
One printable reference: check representative V28 mappings and the documentation reminders your note needs. Free, no card.
Free PDF. No card. Unsubscribe anytime.
What This Code Means
D13.91 is the ICD-10-CM diagnosis code for familial adenomatous polyposis. An inherited genetic condition where multiple benign polyps develop throughout the colon and digestive tract, with high risk of developing colorectal cancer. D13.91 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering benign neoplasms, except benign neuroendocrine tumors (d10-d36).
D13.91 is a billable ICD-10-CM code, but no current CMS-HCC V28 community payment mapping is shown, 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.
This is a hereditary syndrome code; document family history and genetic testing results when available.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for D13.91 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This is a hereditary syndrome code; document family history and genetic testing results when available
- •Consider coding additional polyps or cancers that develop as a result of this condition