D12.9 Benign neoplasm of anus and anal canal

Billable ICD-10-CM code, FY2026.

Applicable to

• Benign neoplasm of anus NOS

Excludes1 (never code together)

• benign neoplasm of anal margin (D22.5, D23.5)
• benign neoplasm of anal skin (D22.5, D23.5)
• benign neoplasm of perianal skin (D22.5, D23.5)

Applies from D12 Benign neoplasm of colon, rectum, anus and anal canal

Excludes2 (not included here)

• benign carcinoid tumors of the large intestine and rectum (D3A.02-)
• polyp of colon NOS (K63.5)

MS-DRG index

Defines the logic of DRG(s) 393-395 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 211.4 Benign neoplasm of rectum and anal canal (approximate)

Code annotations containing back-references to D12.9

Back-references to D12.9

• Type 1 Excludes: D23.5 Other benign neoplasm of skin of trunk ("benign neoplasm of anus NOS (D12.9)")

Back-references to D12

• Type 2 Excludes: K63.5 Polyp of colon ("adenomatous polyp of colon (D12.-)")

Nearby codes

• D12.4 Benign neoplasm of descending colon
• D12.5 Benign neoplasm of sigmoid colon
• D12.6 Benign neoplasm of colon, unspecified
• D12.7 Benign neoplasm of rectosigmoid junction
• D12.8 Benign neoplasm of rectum
• D12.9 Benign neoplasm of anus and anal canal (this code)