Swelling, mass, or lump in head and neck

This code represents the presence of an abnormal localized enlargement or protuberance in the head or neck region. It indicates a palpable mass, swelling, or lump that is not further specified as to its underlying etiology. This is a symptom code, not a definitive diagnosis.

Use this code when documentation indicates a patient presents with a chief complaint or physical exam finding of a swelling, mass, or lump located anywhere on the head or neck, and a more specific diagnosis has not yet been established. This code is appropriate for initial encounters or when the cause of the mass is still under investigation.

• Always sequence this code as a secondary diagnosis when a definitive diagnosis for the mass is known (e.g., benign neoplasm, cyst).
• Avoid using this code if a more specific anatomical site or type of mass is documented (e.g., cervical lymphadenopathy, thyroid nodule).
• Ensure documentation clearly specifies the head or neck region; do not use for masses in other body areas.