L02.23 – Carbuncle of trunk

ICD-10-CM 2027 diagnosis code · Infections of the skin and subcutaneous tissue

Non-billable header

ICD-10-CM code L02.23

Code: L02.23 (claims format: L0223)
Description: Carbuncle of trunk
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 12. Diseases of the skin and subcutaneous tissue (L00-L99)
Block: L00-L08 Infections of the skin and subcutaneous tissue
Parent codes: L02 › L02.2

Billable codes under L02.23

L02.23 is a header code and cannot be used on claims. Choose the most specific code:

L02.231 – Carbuncle of abdominal wallBillable
L02.232 – Carbuncle of back [any part, except buttock and flank]Billable
L02.233 – Carbuncle of chest wallBillable
L02.234 – Carbuncle of groinBillable
L02.235 – Carbuncle of perineumBillable
L02.236 – Carbuncle of umbilicusBillable
L02.237 – Carbuncle of flankBillable · New in 2027
L02.239 – Carbuncle of trunk, unspecifiedBillable

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

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)

L02.2 – Cutaneous abscess, furuncle and carbuncle of trunk

Excludes1 (not coded here):

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

Excludes2 (not included here):

abscess of breast (N61.1)
abscess of buttocks (L02.31)
abscess of female external genital organs (N76.4)
abscess of male external genital organs (N48.2, N49.-)
abscess of hip (L02.4)

Block L00-L08

Excludes2 (not included here):

hordeolum (H00.0)
infective dermatitis (L30.3)
local infections of skin classified in Chapter 1
lupus panniculitis (L93.2)
panniculitis NOS (M79.3)
panniculitis of neck and back (M54.0-)
Perlèche NOS (K13.0)
Perlèche due to candidiasis (B37.0)
Perlèche due to riboflavin deficiency (E53.0)
pyogenic granuloma (L98.0)
relapsing panniculitis [Weber-Christian] (M35.6)
viral warts (B07.-)
zoster (B02.-)

Use additional code:

code (B95-B97) to identify infectious agent.

Related codes in L02.2

L02.21 – Cutaneous abscess of trunkHeader
L02.22 – Furuncle of trunkHeader

Frequently asked questions

What is ICD-10 code L02.23?

L02.23 is the ICD-10-CM code for carbuncle of trunk, in the block L00-L08 (Infections of the skin and subcutaneous tissue).

Is L02.23 a billable code?

No. L02.23 is a header code with more specific child codes; report one of the billable codes listed above.

What category does L02.23 belong to?

It belongs to category L02 – Cutaneous abscess, furuncle and carbuncle.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.