ICD-10 Code J34.3 – Hypertrophy of nasal turbinates (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J34.3 – Hypertrophy of nasal turbinates
What it is
J34.3 identifies enlargement of the nasal turbinates, the structures inside the nose that help warm and filter air. Use it when documentation states turbinate hypertrophy or swelling as the diagnosis.
Clinical signs
Common findings include nasal obstruction, congestion, and reduced airflow through the nose. Clinical features vary; refer to documentation for the exact cause and whether the enlargement is unilateral or bilateral.
When to use this code
Use J34.3 when the provider documents hypertrophy of the nasal turbinates as the reason for the visit or a confirmed diagnosis. It may apply in ENT evaluations, imaging reports, or postoperative follow-up when turbinate enlargement is clearly identified. Check documentation if the note only mentions nonspecific nasal swelling.
Do not use for
Do not use this code for general rhinitis, sinusitis, or other nasal obstruction without documented turbinate hypertrophy. If the record describes a different nasal lesion or an unspecified mass, check documentation.
Coding tip
Look for the exact term “hypertrophy” in the provider note; do not infer J34.3 from congestion alone.