Localized swelling, mass and lump, neck

This code signifies a palpable, circumscribed enlargement or protuberance located specifically in the neck region. It represents an abnormal finding that is localized, rather than diffuse, and can be due to various underlying etiologies such as inflammation, benign growths, or early malignant processes.

Apply this code when documentation indicates a patient presents with a distinct, palpable swelling, mass, or lump confined to the neck, without a more specific definitive diagnosis. This is appropriate for initial encounters or when the precise nature of the neck mass is yet to be determined, such as during a workup for a newly discovered cervical lymphadenopathy or thyroid nodule.

• Do not use if a more specific diagnosis for the neck mass (e.g., thyroid nodule, lipoma, lymphadenitis) has been established.
• Requires documentation of the specific location as "neck" and the nature as "swelling," "mass," or "lump."
• Consider sequencing this as a primary diagnosis when the neck mass is the reason for the encounter, or as a secondary diagnosis if it's an incidental finding during an encounter for another condition.