D12.2 — Benign neoplasm of ascending colon
D12.2 is a billable, specific ICD-10-CM code for benign neoplasm of ascending colon. It is valid for submission on a claim.
Risk adjustment
D12.2 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
D12.2 is named in 18 Medicare coverage policies — 18 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A55937Billing and Coding: Diagnostic Colonoscopy
- A56394Billing and Coding: Colonoscopy and Sigmoidoscopy-Diagnostic
- A56421Billing and Coding: CT of the Abdomen and Pelvis
- A56456Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
How D12.2 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 D12.2.
- Polyp, polypus›colon›adenomatous›ascending
Related codes at this level
Codes that share D12. If D12.2 is not quite right, the correct code is usually one of these.
- D12.0Benign neoplasm of cecum
- D12.1Benign neoplasm of appendix
- D12.3Benign neoplasm of transverse colon
- D12.4Benign neoplasm of descending colon
- D12.5Benign neoplasm of sigmoid colon
- D12.6Benign neoplasm of colon, unspecified
- D12.7Benign neoplasm of rectosigmoid junction
- D12.8Benign neoplasm of rectum
- D12.9Benign neoplasm of anus and anal canal
Questions about D12.2
- Is D12.2 a billable ICD-10-CM code?
- Yes. D12.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does D12.2 sit in the tabular list?
- Neoplasms (C00-D49), in the block Benign neoplasms, except benign neuroendocrine tumors (D10-D36).