ICD-10-CM 2027
ICD-10 code for carbuncle
From the official ICD-10-CM alphabetic index entry “Carbuncle”. Page updated September 29, 2026.
About coding carbuncle
The ICD-10-CM code for carbuncle is L02.93 (Carbuncle, unspecified). The official index lists 43 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on L02.93.
Within L02.9, choose L02.93 (Carbuncle, unspecified) only when documentation doesn't support a more specific option: cutaneous abscess, unspecified (L02.91) and furuncle, unspecified (L02.92).
Use an additional code to identify organism (B95-B96).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific carbuncle codes (official index)
- abdominal wall L02.231 — Carbuncle of abdominal wall
- anus K61.0 — Anal abscess
- auditory canal, external
- auricle ear
- axilla L02.43 — Carbuncle of limb
- back (any part except buttock and flank) L02.232 — Carbuncle of back [any part, except buttock and flank]
- breast N61.1 — Abscess of the breast and nipple
- buttock L02.33 — Carbuncle of buttock
- cheek (external) L02.03 — Carbuncle of face
- chest wall L02.233 — Carbuncle of chest wall
- chin L02.03 — Carbuncle of face
- corpus cavernosum N48.21 — Abscess of corpus cavernosum and penis
- ear (any part) (external) (middle)
- external auditory canal
- eyelid
- face NEC L02.03 — Carbuncle of face
- femoral (region)
- finger
- flank L02.237 — Carbuncle of flank
- foot L02.63 — Carbuncle of foot
- forehead L02.03 — Carbuncle of face
- genital
- gluteal (region) L02.33 — Carbuncle of buttock
- groin L02.234 — Carbuncle of groin
- hand L02.53 — Carbuncle of hand
- head NEC L02.831 — Carbuncle of head [any part, except face]
- heel
- hip
- kidney
- knee
- labium (majus) (minus) N76.4 — Abscess of vulva
- lacrimal
- gland
- passages (duct) (sac)
- leg
- lower limb L02.43 — Carbuncle of limb
- malignant A22.0 — Cutaneous anthrax
- navel L02.236 — Carbuncle of umbilicus
- neck L02.13 — Carbuncle of neck
- nose (external) (septum) J34.0 — Abscess, furuncle and carbuncle of nose
- orbit, orbital
- palmar (space)
- partes posteriores L02.33 — Carbuncle of buttock
- pectoral region L02.233 — Carbuncle of chest wall
- penis N48.21 — Abscess of corpus cavernosum and penis
- perineum L02.235 — Carbuncle of perineum
- pinna
- popliteal
- scalp L02.831 — Carbuncle of head [any part, except face]
- seminal vesicle N49.0 — Inflammatory disorders of seminal vesicle
- shoulder
- specified site NEC L02.838 — Carbuncle of other sites
- temple (region) L02.03 — Carbuncle of face
- thumb
- toe
- trunk L02.239 — Carbuncle of trunk, unspecified
- abdominal wall L02.231 — Carbuncle of abdominal wall
- back L02.232 — Carbuncle of back [any part, except buttock and flank]
- chest wall L02.233 — Carbuncle of chest wall
- groin L02.234 — Carbuncle of groin
- perineum L02.235 — Carbuncle of perineum
- umbilicus L02.236 — Carbuncle of umbilicus
- umbilicus L02.236 — Carbuncle of umbilicus
- upper limb L02.43 — Carbuncle of limb
- urethra N34.0 — Urethral abscess
- vulva N76.4 — Abscess of vulva
Common questions about carbuncle ICD-10 codes
What is the ICD-10 code for carbuncle?
- L02.93 — Carbuncle, unspecified. More specific codes apply when the documentation supports them: L02.231, K61.0, L02.43, L02.232 and others below.
What is the ICD-10 code for abdominal wall carbuncle?
- L02.231 — Carbuncle of abdominal wall.
What is the ICD-10 code for anus carbuncle?
- K61.0 — Anal abscess.
What is the ICD-10 code for axilla carbuncle?
- L02.43 — Carbuncle of limb (header code; choose a more specific subcode).
What is the ICD-10 code for back carbuncle?
- L02.232 — Carbuncle of back [any part, except buttock and flank].
What is the ICD-10 code for breast carbuncle?
- N61.1 — Abscess of the breast and nipple.
What is the ICD-10 code for buttock carbuncle?
- L02.33 — Carbuncle of buttock.
Is L02.93 billable?
- Yes. L02.93 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L02.93 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L02.93 as a principal diagnosis.
Is L02.93 a CC or MCC?
- No. L02.93 is neither a CC nor an MCC under MS-DRG v44.0.