ICD-10-CM 2027 diagnosis code
L02.4Cutaneous abscess, furuncle and carbuncle of limb
L02.4 is a header code, so it can't be reported by itself. Choose one of the 3 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 L02.4
L02.4 is the ICD-10-CM diagnosis code for cutaneous abscess, furuncle and carbuncle of limb. 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 3 subcodes must be used instead.
Within L02 (cutaneous abscess, furuncle and carbuncle), L02.4 is specifically for cutaneous abscess, furuncle and carbuncle of limb. Related codes cover of face (L02.0), of neck (L02.1), of trunk (L02.2), of buttock (L02.3), of hand (L02.5), of foot (L02.6), of other sites (L02.8) and unspecified (L02.9).
To report this condition, pick the subcode that matches the documentation: L02.41 (limb), L02.42 (limb) and L02.43 (limb).
The conditions in its Excludes2 note aren't part of L02.4, but may be coded alongside it if the patient has both: Cutaneous abscess, furuncle and carbuncle of groin (L02.214, L02.224, L02.234), Cutaneous abscess, furuncle and carbuncle of hand (L02.5-) and Cutaneous abscess, furuncle and carbuncle of foot (L02.6-).
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 L02.4
- L02.41Cutaneous abscess of limb
- L02.411Cutaneous abscess of right axillaBillable
- L02.412Cutaneous abscess of left axillaBillable
- L02.413Cutaneous abscess of right upper limbBillable
- L02.414Cutaneous abscess of left upper limbBillable
- L02.415Cutaneous abscess of right lower limbBillable
- L02.416Cutaneous abscess of left lower limbBillable
- L02.419Cutaneous abscess of limb, unspecifiedBillable
- L02.42Furuncle of limb
- L02.43Carbuncle of limb
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to L02.4.
Broader instructions also apply from L00-L08 Infections of the skin and subcutaneous tissue and Chapter 12: Diseases of the skin and subcutaneous tissue.
Codes whose notes reference L02.4
- L02.2Excludes2
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about L02.4
Is L02.4 billable?
- No. L02.4 is a header code. Report one of its more specific subcodes instead.