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ICD-10-CM 2027 diagnosis code

L02.23Carbuncle of trunk

Not billable — use a more specific code

L02.23 is a header code, so it can't be reported by itself. Choose one of the 8 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About L02.23

L02.23 is the ICD-10-CM diagnosis code for carbuncle of trunk. It belongs to category L02 (cutaneous abscess, furuncle and carbuncle), block L00-L08 (infections of the skin and subcutaneous tissue) and chapter 12 (diseases of the skin and subcutaneous tissue). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.

Within L02.2 (cutaneous abscess, furuncle and carbuncle of trunk), L02.23 is specifically for carbuncle of trunk. Related codes cover cutaneous abscess of trunk (L02.21) and furuncle of trunk (L02.22).

To report this condition, pick the subcode that matches the documentation: L02.231 (wall), L02.232 (flank]), L02.233 (wall), L02.234 (groin), L02.235 (perineum), L02.236 (umbilicus), L02.237 (flank) and L02.239 (unspecified).

Use an additional code to identify organism (B95-B96).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under L02.23

Notes that apply from higher levels

Instructions written at a parent level also apply to L02.23.

› From L02.2 Cutaneous abscess, furuncle and carbuncle of trunk
Excludes1
  • non-newborn omphalitis (L08.82)
  • omphalitis of newborn (P38.-)
Excludes2
  • 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)
› From L02 Cutaneous abscess, furuncle and carbuncle
Excludes2
  • 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)

Broader instructions also apply from L00-L08 Infections of the skin and subcutaneous tissue and Chapter 12: Diseases of the skin and subcutaneous tissue.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about L02.23

Is L02.23 billable?

No. L02.23 is a header code. Report one of its more specific subcodes instead.