Alphabetic Index FY2027

L03.31

Cellulitis of trunk

FY2027Chapter 12: Diseases of the skin and subcutaneous tissue/L00–L08 Infections of the skin and subcutaneous tissue

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

L03.31 is a non-billable ICD-10-CM code header for cellulitis of trunk. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are L03.311 Cellulitis of abdominal wall, L03.312 Cellulitis of back [any part except buttock and flank], L03.313 Cellulitis of chest wall, L03.314 Cellulitis of groin and 5 more. Its coding notes include a Use additional code instruction and 40 Excludes2 entries.

Use additional code

Add the listed code as a secondary code, if known.

Also from chapter/block level (1 note)
Inherited from L00–L08 Infections of the skin and subcutaneous tissue
  • code (B95-B97) to identify infectious agent.

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

This code
  • cellulitis of anal and rectal regions (K61.-)
  • cellulitis of breast NOS (N61.0)
  • cellulitis of female external genital organs (N76.4)
  • cellulitis of male external genital organs (N48.2, N49.-)
  • omphalitis of newborn (P38.-)
  • puerperal cellulitis of breast (O91.2)
Inherited from L03 Cellulitis and acute lymphangitis
  • 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)
Also from chapter/block level (23 notes)
Inherited from L00–L08 Infections of the skin and subcutaneous tissue
  • 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.-)
Inherited from Chapter 12 Diseases of the skin and subcutaneous tissue
  • 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.-)

More specific codes under L03.31 9