ICD-10 Code J34.8210 – External nasal valve collapse, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J34.8210 – External nasal valve collapse, unspecified
What it is
This code identifies collapse or narrowing of the external nasal valve, the outer part of the nasal airway. It is used when the documentation does not specify a side or a more detailed cause.
Clinical signs
Patients commonly report nasal obstruction that worsens with inspiration, exercise, or certain positions. Clinical features vary; refer to documentation for visible valve collapse, airflow limitation, or improvement with manual support of the nasal sidewall.
When to use this code
Use this code when the provider documents external nasal valve collapse without laterality or another specific subtype. It may also fit postoperative, traumatic, or congenital cases if the note only confirms the unspecified collapse. Check documentation if the record instead describes general nasal obstruction.
Do not use for
Do not use this code for internal nasal valve collapse, septal deviation alone, or nonspecific congestion without valve collapse. If the documentation is unclear, check documentation rather than assuming this diagnosis.
Coding tip
Code only when the provider explicitly documents external nasal valve collapse; otherwise, query or use the documented nasal finding.