MCMCB Pro
K38

K38Other diseases of appendix

Non-billable headerICD-10-CM

K38 is a non-billable header ICD-10-CM code for other diseases of appendix. It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

K38 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 K38

6 child codes. Green means billable.

Questions about K38

Is K38 a billable ICD-10-CM code?
No. K38 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does K38 sit in the tabular list?
Diseases of the digestive system (K00-K95), in the block Diseases of appendix (K35-K38).
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.