Is L03.04 a billable ICD-10-CM code?

No. L03.04 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does L03.04 sit in the tabular list?

Diseases of the skin and subcutaneous tissue (L00-L99), in the block Infections of the skin and subcutaneous tissue (L00-L08).

L03.04

L03.04 — Acute lymphangitis of toe

Non-billable headerICD-10-CM

L03.04 is a non-billable header ICD-10-CM code for acute lymphangitis of toe. It cannot be billed on its own: choose one of the more specific child codes below.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Hangnail with lymphangitis of toe

Excludes2 inherited from the categories above L03.04

Also inherited, and the opposite of Excludes1: these conditions are not part of L03.04, but a patient can have both, so you may code both.

Written on 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)

Other codes that can never be billed with L03.04

These codes carry an Excludes1 note pointing at L03.04. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading L03.04 alone.

I89.1Lymphangitis

Risk adjustment

L03.04 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code history

L03.04 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Code to one of these instead L03.04

3 child codes. Green means billable.

Related codes at this level

Codes that share L03.0. If L03.04 is not quite right, the correct code is usually one of these.

Questions about L03.04

Is L03.04 a billable ICD-10-CM code?: No. L03.04 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does L03.04 sit in the tabular list?: Diseases of the skin and subcutaneous tissue (L00-L99), in the block Infections of the skin and subcutaneous tissue (L00-L08).