MCMCB Pro
K61

K61Abscess of anal and rectal regions

Non-billable headerICD-10-CM

K61 is a non-billable header ICD-10-CM code for abscess of anal and rectal regions. It cannot be billed on its own: choose one of the more specific child codes below.

Includes

Conditions this code covers.

  • abscess of anal and rectal regions
  • cellulitis of anal and rectal regions

Other codes that can never be billed with K61

These codes carry an Excludes1 note pointing at K61. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading K61 alone.

Risk adjustment

K61 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.

Code to one of these instead K61

6 child codes. Green means billable.

Questions about K61

Is K61 a billable ICD-10-CM code?
No. K61 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does K61 sit in the tabular list?
Diseases of the digestive system (K00-K95), in the block Other diseases of intestines (K55-K64).
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.