ICD-10-CM 2027
ICD-10 code for abdominal wall cellulitis
From the official ICD-10-CM alphabetic index entry “Cellulitis (diffuse) (phlegmonous) (septic) (suppurative) › abdominal wall”. Page updated September 29, 2026.
About coding abdominal wall cellulitis
The ICD-10-CM code for abdominal wall cellulitis is L03.311 (Cellulitis of abdominal wall).
Within L03.31 (cellulitis of trunk), L03.311 is specifically for cellulitis of abdominal wall. Related codes cover back [any part except buttock and flank] (L03.312), chest wall (L03.313), groin (L03.314), perineum (L03.315), umbilicus (L03.316), buttock (L03.317), unspecified (L03.319) and flank (L03.31A).
The conditions in its Excludes2 note aren't part of L03.311, but may be coded alongside it if the patient has both: cellulitis of umbilicus (L03.316) and cellulitis of groin (L03.314).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
Common questions about abdominal wall cellulitis ICD-10 codes
What is the ICD-10 code for abdominal wall cellulitis?
- L03.311 — Cellulitis of abdominal wall.
Is L03.311 billable?
- Yes. L03.311 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L03.311 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L03.311 as a principal diagnosis.
Is L03.311 a CC or MCC?
- L03.311 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.