L02.237UpcomingBillable / specific

Carbuncle of flank

L00-L08 · Inherited instructions

Use additional code

code (B95-B97) to identify infectious agent.

L02 · Inherited instructions

Use additional code

code to identify organism (B95-B96)

L02.2 · Inherited instructions

Excludes 1

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

Excludes 2 · 31

L00-L08 · Infections of the skin and subcutaneous tissue (L00-L08)

Excludes 2

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.-)

L02 · Cutaneous abscess, furuncle and carbuncle

Excludes 2

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

Chapters 12 · Diseases of the skin and subcutaneous tissue (L00-L99)

Excludes 2

certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
lipomelanotic reticulosis (I89.8)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
systemic connective tissue disorders (M30-M36)
viral warts (B07.-)

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

Excludes 2

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)

Claims & coverage

Coverage depends on the payer, service and applicable policy. A billable code does not guarantee payment.

When ICD-10-CM is required

For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.

Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.

Official coding guidelines → · CMS ↗

Check Medicare coverage ↗

First observed · 2026-10-01

Code history

Latest recorded change · FY2027

ChangedUnchanged

FY2027UpcomingSelected edition

Effective from 2026-10-01

Added

Carbuncle of flank

Billable diagnosis code

CDC/NCHS · FY2027

All editions (1)

All editions	Effective from	Code history
FY2027	2026-10-01	Added

Code-level instructions

The official Tabular List has no additional instructions at this code level.

Review the instructions inherited from its parent categories below. Inherited instructions ↓

Review the official coding guidelines ↗

Inherited instructions

L00-L08 · Infections of the skin and subcutaneous tissue (L00-L08)

Excludes 2

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.

L02 · Cutaneous abscess, furuncle and carbuncle

Excludes 2

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)

Chapters 12 · Diseases of the skin and subcutaneous tissue (L00-L99)

Excludes 2

certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
lipomelanotic reticulosis (I89.8)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
systemic connective tissue disorders (M30-M36)
viral warts (B07.-)

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

Excludes 1

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

Excludes 2

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)

Official index references (1)

Carbuncle (1)

Carbuncle › flankDisease index

Official conversion history

Historical assignments from the CDC conversion table support data retrieval. They do not authorize substituting a previous code for the current code.

Release dates 2026-10-01

Previous assignment: L02.232

Related codes

Other entries in the same category; these are not automatic substitutes.

Code	Description	Category · further specificity required
L02.231	Carbuncle of abdominal wall	Billable / specific
L02.232	Carbuncle of back [any part, except buttock and flank]	Billable / specific
L02.233	Carbuncle of chest wall	Billable / specific
L02.234	Carbuncle of groin	Billable / specific
L02.235	Carbuncle of perineum	Billable / specific
L02.236	Carbuncle of umbilicus	Billable / specific
L02.239	Carbuncle of trunk, unspecified	Billable / specific

Official titles and instructions are preserved in their source language. Official sources ↗

Claims & coverage

Coverage depends on the payer, service and applicable policy. A billable code does not guarantee payment.

When ICD-10-CM is required

For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.

Official coding guidelines → · CMS ↗

Check Medicare coverage ↗

All editions

Effective from

Code history

FY2027

2026-10-01

Added