L03.3 ICD-10-CA subcategory: Cellulitis of trunk
L03.3 isn’t a code on its own. Choose one of the 8 codes beneath it, the one the documentation supports.
Official description
L03.3Cellulitis of trunk
ICD-10-CA · Canada · Also written L033
Codes in L03.3
L03.3 isn’t a code on its own. Open the code that matches what the note documents.
Notes for L03.3
As CIHI prints them, with any note L03.3 takes from the headings above it.
Includes
- Acute lymphangitisFrom L03 Cellulitis
Use additional code
Add a code for this detail when the note documents it.
- Use additional code (B95-B97) to identify infectious agent.From L00-L08 Infections of the skin and subcutaneous tissue
Excludes
Conditions classified elsewhere.
- Omphalitis of newborn (P38)
- Cellulitis of:• anal and rectal regions (K61.-)• external• auditory canal (H60.1)• genital organs• female (N76.4)• male (N48.2,N49.-)• eyelid (H00.0)• lacrimal apparatus (H04.3)• mouth (K12.2)• nose (J34.0)eosinophilic cellulitis [Wells] (L98.3)febrile neutrophilic dermatosis [Sweet] (L98.2)lymphangitis (chronic)(subacute) (I89.1)From L03 Cellulitis
- Hordeolum (H00.0)infective dermatitis (L30.3)local infections of skin classified in Chapter I, such as:• erysipelas (A46)• erysipeloid (A26.-)• herpesviral [herpes simplex] infection (B00.-)• anogenital (A60.-)• molluscum contagiosum (B08.1)• mycoses (B35-B49)• pediculosis, acariasis and other infestations (B85-B89)• viral warts (B07)panniculitis (of):• NOS (M79.3)• lupus (L93.2)• neck and back (M54.0)• relapsing [Weber-Christian] (M35.6)perlèche (due to):• NOS (K13.0)• candidiasis (B37.-)• riboflavin deficiency (E53.0)pyogenic granuloma (L98.0)zoster (B02.-)From L00-L08 Infections of the skin and subcutaneous tissue
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)lipomelanotic reticulosis (I89.8)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)systemic connective tissue disorders (M30-M36)From Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)
Where L03.3 sits
- 1ChapterChapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)
- 2Block L00-L08Infections of the skin and subcutaneous tissue
- 3Category L03Cellulitis
- 4Subcategory L03.3Cellulitis of trunk
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is L03.3 a valid ICD-10-CA code?
No. L03.3 (Cellulitis of trunk) is a subcategory heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 8 codes; record the one the documentation supports.
Where is L03.3 in ICD-10-CA?
L03.3 sits under L03 Cellulitis, within L00-L08 Infections of the skin and subcutaneous tissue, within Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99).
What coding notes apply to L03.3?
ICD-10-CA lists Excludes, Includes, Use additional code notes for L03.3, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.