ICD-10-CM L03.90 is the diagnosis code for Cellulitis, unspecified. This code falls under the section "Infections of the skin and subcutaneous tissue" within Chapter 12 — Diseases of the skin and subcutaneous tissue (L00-L99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where L03.90 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, L03.90 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
L03.90 is the ICD-10-CM diagnosis code for "Cellulitis, unspecified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of L03.90 is L03.9 ("Cellulitis and acute lymphangitis, unspecified"). L03.90 provides a more specific classification within this category.
L03.90 is located in Section L00-L08 — "Infections of the skin and subcutaneous tissue" within Chapter 12 of the ICD-10-CM Tabular List.
L03.90 has 1918 sub-code(s) that provide more specific detail: A00, A01, A02, A03, A04 and more.
Use L03.90 when the patients documented diagnosis matches "Cellulitis, unspecified" 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, unspecified is L03.90.
Yes, L03.90 can be used as a primary diagnosis code since it is billable and specific.
L03.90 is in Chapter 12 of the ICD-10-CM Tabular List.
Yes, L03.90 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.