Non-Billable / Non-Specific Code
ICD-10-CM L03 is the diagnosis code for Cellulitis and acute lymphangitis. This code falls under the section "Infections of the skin and subcutaneous tissue" within Chapter 12 â Diseases of the skin and subcutaneous tissue (L00-L99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions are not included in L03. If the patient has both, code each condition separately:
Understanding where L03 sits in the ICD-10-CM classification helps ensure proper coding:
No, L03 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
L03 is the ICD-10-CM diagnosis code for "Cellulitis and acute lymphangitis". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
L03 is located in Section L00-L08 â "Infections of the skin and subcutaneous tissue" within Chapter 12 of the ICD-10-CM Tabular List.
L03 has 6 sub-code(s) that provide more specific detail: L03.0, L03.1, L03.2, L03.3, L03.8 and more.
Use L03 when the patients documented diagnosis matches "Cellulitis and acute lymphangitis" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Cellulitis and acute lymphangitis is L03.
No, L03 is non-billable. Use a more specific sub-code for primary diagnosis billing.
L03 is in Chapter 12 of the ICD-10-CM Tabular List.
Yes, L03 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.