161.9
ICD-9-CMThis code signifies the presence of a cancerous growth originating in the larynx, where the specific anatomical site within the larynx (e.g., glottis, supraglottis, subglottis) has not been precisely identified or documented. It indicates a primary malignant tumor of the voice box without further specification of its exact location.
Use this code when the medical record clearly states a diagnosis of laryngeal cancer, but the physician documentation does not specify the subsite within the larynx. This is appropriate when pathology confirms malignancy but imaging or endoscopic reports lack the granular detail for a more specific laryngeal site.
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