ICD-10 Code C32.0 – Malignant neoplasm of glottis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C32.0 – Malignant neoplasm of glottis
What it is
This code identifies a malignant tumor arising in the glottis, the part of the larynx that includes the vocal cords. Use it when documentation specifies cancer of the glottic larynx.
Clinical signs
Common findings include persistent hoarseness, voice change, throat discomfort, or a visible laryngeal mass. Clinical features vary; refer to documentation.
When to use this code
Use C32.0 when the provider documents primary malignancy of the glottis or glottic larynx. It is appropriate for confirmed cancer diagnoses, including pathology or specialist notes that clearly identify this site.
Choose this code when the record distinguishes the glottis from other laryngeal subsites. If the site is unclear or described more broadly, check documentation before assigning the code.
Do not use for
Do not use this code for benign vocal cord lesions, dysplasia, or unspecified laryngeal cancer. Check documentation if the malignancy is stated in another laryngeal subsite.
Coding tip
Capture the exact anatomic site; glottic specificity matters for correct staging and code selection.