L02.639 Carbuncle of unspecified foot

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)

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 680.7 Carbuncle and furuncle of foot (approximate)

Code annotations containing back-references to L02.639

Back-references to L02.6

• Type 2 Excludes: L02.4 Cutaneous abscess, furuncle and carbuncle of limb ("Cutaneous abscess, furuncle and carbuncle of foot (L02.6-)")

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.-)")

Nearby codes

• L02.622 Furuncle of left foot
• L02.629 Furuncle of unspecified foot
• L02.63 Carbuncle of foot
• L02.631 Carbuncle of right foot
• L02.632 Carbuncle of left foot
• L02.639 Carbuncle of unspecified foot (this code)
• L02.8 Cutaneous abscess, furuncle and carbuncle of other sites
• L02.81 Cutaneous abscess of other sites
• L02.811 Cutaneous abscess of head [any part, except face]
• L02.818 Cutaneous abscess of other sites
• L02.82 Furuncle of other sites