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ICD-10-CM 2027 diagnosis code

L03.3Cellulitis and acute lymphangitis of trunk

Not billable — use a more specific code

L03.3 is a header code, so it can't be reported by itself. Choose one of the 2 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 L03.3

L03.3 is the ICD-10-CM diagnosis code for cellulitis and acute lymphangitis of trunk. It belongs to category L03 (cellulitis and acute lymphangitis), 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 2 subcodes must be used instead.

Within L03 (cellulitis and acute lymphangitis), L03.3 is specifically for cellulitis and acute lymphangitis of trunk. Related codes cover of finger and toe (L03.0), of other parts of limb (L03.1), of face and neck (L03.2), of other sites (L03.8) and unspecified (L03.9).

To report this condition, pick the subcode that matches the documentation: L03.31 (trunk) and L03.32 (trunk).

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 L03.3

Notes that apply from higher levels

Instructions written at a parent level also apply to L03.3.

› From L03 Cellulitis and acute lymphangitis
Excludes2
  • cellulitis of anal and rectal region (K61.-)
  • cellulitis of external auditory canal (H60.1)
  • cellulitis of eyelid (H00.0)
  • cellulitis of female external genital organs (N76.4)
  • cellulitis of lacrimal apparatus (H04.3)
  • cellulitis of male external genital organs (N48.2, N49.-)
  • cellulitis of mouth (K12.2)
  • cellulitis of nose (J34.0)
  • eosinophilic cellulitis [Wells] (L98.3)
  • febrile neutrophilic dermatosis [Sweet] (L98.2)
  • lymphangitis (chronic) (subacute) (I89.1)

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 L03.3

Is L03.3 billable?

No. L03.3 is a header code. Report one of its more specific subcodes instead.