ICDcodes.org
FY2027

L03.0 — Cellulitis and acute lymphangitis of finger and toe

Not billable

Is L03.0 billable?

No — L03.0 is a non-billable header code. L03.0 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 12 billable codes beneath L03.0.

L03.0 at a glance

CodeL03.0
DescriptionCellulitis and acute lymphangitis of finger and toe
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Inclusion terms

Alternative wording in documentation that is classified to L03.0.

  • Infection of nail
  • Onychia
  • Paronychia
  • Perionychia

Use additional code — inherited from L00-L08

Report an additional code alongside L03.0 to fully describe the condition. L03.0 is sequenced first.

  • code (B95-B97) to identify infectious agent.

Excludes2 — not included here — inherited from Chapter 12

The conditions below are not part of L03.0, but a patient may have both at the same time. When documentation supports it, L03.0 and the excluded code may both be reported.

  • 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.-)

Excludes2 — not included here — inherited from L00-L08

The conditions below are not part of L03.0, but a patient may have both at the same time. When documentation supports it, L03.0 and the excluded code may both be reported.

  • 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.-)

Excludes2 — not included here — inherited from L03

The conditions below are not part of L03.0, but a patient may have both at the same time. When documentation supports it, L03.0 and the excluded code may both be reported.

  • 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)

What codes fall under L03.0? (4)

How long has L03.0 existed?

L03.0 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

What other codes are in the L03 family? (5)