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ICD-10-CM tabular list

D3ABenign neuroendocrine tumors

ICD-10-CM codes D3A cover benign neuroendocrine tumors, within neoplasms. The block holds 27 codes across 1 category, of which 22 are billable and 5 are header codes that cannot be submitted on a claim.

Risk adjustment in D3A

0 codes in this block map to a CMS-HCC, which means the diagnosis carries a risk-adjustment payment when it is documented and coded. Under-coding here is money left on the table; over-coding here is what audits are for.

  • HCC 22 Bladder, Colorectal, and Other Cancers

What else to watch in D3A

  • 22 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.

Categories in D3A

ICD-10-CMFY2026-Apr· effective April 1, 2026