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D3A.020

D3A.020: Benign carcinoid tumor of the appendix

Billable / specific codeICD-10-CM

D3A.020 is a billable, specific ICD-10-CM code for benign carcinoid tumor of the appendix. It is valid for submission on a claim.

Check D3A.020 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above D3A.020

Not part of this code, but both may be coded when both are present.

Written on D3A: Benign neuroendocrine tumors

  • benign pancreatic islet cell tumors (D13.7)

Other codes that can never be billed with D3A.020

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • D12.1Benign neoplasm of appendix

Risk adjustment

D3A.020 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 22 Bladder, Colorectal, and Other Cancers0.363 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Medicare coverage

D3A.020 is named in 10 Medicare coverage policies: 10 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A52986Billing and Coding: Biomarkers for Oncology
  • A56394Billing and Coding: Colonoscopy and Sigmoidoscopy-Diagnostic
  • A56421Billing and Coding: CT of the Abdomen and Pelvis
  • A56456Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy

Alphabetic index entries that lead here

  • Tumor›carcinoid›benign›appendix

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under D3A.02

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.