ICD-10 Code C32 – Malignant neoplasm of larynx (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C32 – Malignant neoplasm of larynx
What it is
C32 identifies a malignant tumor arising in the larynx, or voice box. Use it when documentation states primary cancer of the larynx without a more specific subsite code.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings include hoarseness, persistent throat discomfort, dysphagia, cough, or airway symptoms, but the diagnosis depends on confirmed malignant disease.
When to use this code
Use C32 when the record clearly documents malignant neoplasm of the larynx as the principal diagnosis or a reportable condition. It is appropriate for primary laryngeal cancer when the exact laryngeal subsite is not specified. If the provider names a more specific site or histology, code that information instead.
Do not use for
Do not use C32 for benign laryngeal lesions, dysplasia, or inflammatory conditions. If documentation refers to metastasis to the larynx or an uncertain diagnosis, check documentation and code accordingly.
Coding tip
Verify whether the note specifies a laryngeal subsite, because a more precise ICD-10 code may be available.