ICD-10 Code J34.0 – Abscess, furuncle and carbuncle of nose (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J34.0 – Abscess, furuncle and carbuncle of nose
What it is
J34.0 identifies a localized bacterial infection of the nose that forms an abscess, furuncle, or carbuncle. Use it when documentation specifies an infected lesion of the nasal area.
Clinical signs
Typical findings include nasal pain, swelling, redness, and a tender draining lesion. Clinical features vary; refer to documentation for whether the infection is described as an abscess, furuncle, or carbuncle.
When to use this code
Use this code when the provider documents an abscess, furuncle, or carbuncle involving the nose. It may also apply when the note clearly identifies a nasal boil or localized purulent infection. Check documentation if the site is only described as facial or skin without nasal involvement.
Do not use for
Do not use J34.0 for simple nasal inflammation, trauma, or cellulitis without a documented abscess, furuncle, or carbuncle. Check documentation if the lesion is elsewhere on the face or skin.
Coding tip
Code the exact nasal site only when the record states it; otherwise, query for clarification.