K40
K40 — Inguinal hernia
Non-billable headerICD-10-CM
K40 is a non-billable header ICD-10-CM code for inguinal hernia. It cannot be billed on its own: choose one of the more specific child codes below.
Includes
Conditions this code covers.
- bubonocele
- direct inguinal hernia
- double inguinal hernia
- indirect inguinal hernia
- inguinal hernia NOS
- oblique inguinal hernia
- scrotal hernia
Other codes that can never be billed with K40
These codes carry an Excludes1 note pointing at K40. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading K40 alone.
- I96Gangrene, not elsewhere classified
Risk adjustment
K40 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 K40
6 child codes. Green means billable.
- K40.0Bilateral inguinal hernia, with obstruction, without gangrene
- K40.1Bilateral inguinal hernia, with gangrene
- K40.2Bilateral inguinal hernia, without obstruction or gangrene
- K40.3Unilateral inguinal hernia, with obstruction, without gangrene
- K40.4Unilateral inguinal hernia, with gangrene
- K40.9Unilateral inguinal hernia, without obstruction or gangrene
Questions about K40
- Is K40 a billable ICD-10-CM code?
- No. K40 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does K40 sit in the tabular list?
- Diseases of the digestive system (K00-K95), in the block Hernia (K40-K46).