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D3A.029

D3A.029Benign carcinoid tumor of the large intestine, unspecified portion

Billable / specific codeICD-10-CM

D3A.029 is a billable, specific ICD-10-CM code for benign carcinoid tumor of the large intestine, unspecified portion. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Benign carcinoid tumor of the colon NOS

Risk adjustment

D3A.029 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.

Medicare coverage

D3A.029 is named in 12 Medicare coverage policies 12 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • 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

How D3A.029 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to D3A.029.

  • Tumorcarcinoidbenigncolon
  • Tumorcarcinoidbenignlarge intestine

Related codes at this level

Codes that share D3A.02. If D3A.029 is not quite right, the correct code is usually one of these.

Questions about D3A.029

Is D3A.029 a billable ICD-10-CM code?
Yes. D3A.029 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does D3A.029 sit in the tabular list?
Neoplasms (C00-D49), in the block Benign neuroendocrine tumors (D3A).
ICD-10-CMFY2026-Apr· effective April 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.