L02.227 Furuncle of flank

Billable ICD-10-CM code, FY2026.

Applies from L02 Cutaneous abscess, furuncle and carbuncle

Excludes2 (not included here)

• abscess of anus and rectal regions (K61.-)
• abscess of female genital organs (external) (N76.4)
• abscess of male genital organs (external) (N48.2, N49.-)

Use additional code

• code to identify organism (B95-B96)

Applies from L02.2 Cutaneous abscess, furuncle and carbuncle of trunk

Excludes1 (never code together)

• non-newborn omphalitis (L08.82)
• omphalitis of newborn (P38.-)

Excludes2 (not included here)

• abscess of breast (N61.1)
• abscess of buttocks (L02.3)
• abscess of female external genital organs (N76.4)
• abscess of male external genital organs (N48.2, N49.-)
• abscess of hip (L02.4)

Applies from L02.22 Furuncle of trunk

Applicable to

• Boil of trunk
• Folliculitis of trunk

MS-DRG index

Defines the logic of DRG(s) 602-603 in MDC 09.

Code annotations containing back-references to L02.227

Back-references to L02

• Type 2 Excludes: L89 Pressure ulcer ("skin infections (L00-L08)")
• Type 2 Excludes: L97 Non-pressure chronic ulcer of lower limb, not elsewhere classified ("skin infections (L00-L08)")
• Type 2 Excludes: L98.4 Non-pressure chronic ulcer of skin, not elsewhere classified ("skin infections (L00-L08)")
• Type 2 Excludes: L98.A Non-pressure chronic ulcer of upper limb, not elsewhere classified ("skin infections (L00-L08)")
• Use Additional: T65.84 Toxic effect of xylazine ("cutaneous abscess, furuncle and carbuncle (L02.-)")

Diagnosis Index entries for L02.227

• Furuncle › flank

Nearby codes

• L02.222 Furuncle of back [any part, except buttock and flank]
• L02.223 Furuncle of chest wall
• L02.224 Furuncle of groin
• L02.225 Furuncle of perineum
• L02.226 Furuncle of umbilicus
• L02.227 Furuncle of flank (this code)
• L02.229 Furuncle of trunk, unspecified
• L02.23 Carbuncle of trunk
• L02.231 Carbuncle of abdominal wall
• L02.232 Carbuncle of back [any part, except buttock]
• L02.233 Carbuncle of chest wall