K55.3
K55.3: Necrotizing enterocolitis
Non-billable headerICD-10-CM
K55.3 is a non-billable header ICD-10-CM code for necrotizing enterocolitis. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- necrotizing enterocolitis of newborn (P77.-)
Excludes2: not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- necrotizing enterocolitis due to Clostridium difficile (A04.7-)
Excludes1 inherited from the categories above K55.3
A category’s note binds every code beneath it.
Excludes2 inherited from the categories above K55.3
Not part of this code, but both may be coded when both are present.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead K55.3
4 child codes. Green means billable.