L03.31Non-Billable (Header)Cellulitis of trunkExcludes 2 — Not included here, may code separatelycellulitis of anal and rectal regions (K61.-)cellulitis of breast NOS (N61.0)cellulitis of female external genital organs (N76.4)cellulitis of male external genital organs (N48.2, N49.-)omphalitis of newborn (P38.-)puerperal cellulitis of breast (O91.2)Child CodesL03.311Cellulitis of abdominal wallL03.312Cellulitis of back [any part except buttock]L03.313Cellulitis of chest wallL03.314Cellulitis of groinL03.315Cellulitis of perineumL03.316Cellulitis of umbilicusL03.317Cellulitis of buttockL03.319Cellulitis of trunk, unspecifiedL03.31ACellulitis of flankCode Hierarchy└L03Cellulitis and acute lymphangitis└L03.3Cellulitis and acute lymphangitis of trunk└L03.31Cellulitis of trunk└L03.31Cellulitis of trunk