L03
Non-billableCellulitis and acute lymphangitis
L03 is the ICD-10-CM code for Cellulitis and acute lymphangitis. It is a non-billable category code — use a more specific child code such as L03.0 for billing.
- Status
- Header (non-billable)
- Chapter
- L00-L99
- Subcodes
- 6
- Edition
- FY2026
L00-L99 Diseases of the skin and subcutaneous tissue
What this means — in plain language
MedlinePlus · NIHCellulitis is an infection of the skin and deep underlying tissues. Group A strep ( streptococcal ) bacteria are the most common cause. The bacteria enter your body when you get an injury such as a bruise, burn, surgical cut, or wound. Symptoms include: Fever and chills Swollen glands or lymph nodes A rash with painful, red, tender skin. The skin may blister and scab over. Your health care provider may take a sample…
Read more about Cellulitis at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes2 — not included here
- •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)
Medications indicated for this condition
FDA labeling- Gentamicin›
- AmikacinAminoglycoside Antibacterial [EPC]›
- Clindamycin in Percent DextroseLincosamide Antibacterial [EPC]›
- Clindamycin Palmitate Hydrochloride (pediatric)›
- penicillin V›
- Tetracycline›
Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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