ICD-10 Code L02.91 – Cutaneous abscess, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L02.91 – Cutaneous abscess, unspecified
What it is
This code identifies a localized skin abscess when the site is not further specified. It refers to a pus-filled infection in the skin or subcutaneous tissue.
Clinical signs
Typical findings include a tender, swollen, red, and warm area that may be fluctuant or draining pus. Clinical features vary; refer to documentation.
When to use this code
Use L02.91 when the record documents a cutaneous abscess but does not name the exact body site. It is appropriate for nonspecific skin abscesses in outpatient, emergency, or inpatient notes. Code more specifically if the provider identifies the location.
Do not use for
Do not use this code for abscesses with a documented specific site when a more precise code is available. Do not use it for noncutaneous infections or if documentation is unclear; check documentation.
Coding tip
Look for the anatomic site in the assessment, procedure note, or discharge summary before assigning the unspecified code.