External constriction of part of scalp, initial encounter

This code signifies a physical compression or narrowing of a portion of the scalp due to an external force or object. This constriction can lead to impaired blood flow, tissue damage, or nerve compression in the affected area.

Apply this code when documentation indicates a patient presents with a scalp injury caused by an external object tightly encircling or pressing upon a part of the scalp. Examples include hair caught in machinery, a tight headpiece, or a foreign body causing localized compression. The "initial encounter" designation is used for the first time the patient is receiving active treatment for this specific injury.

• Ensure documentation clearly specifies "external constriction" and the affected "part of scalp."
• Do not confuse with open wounds or contusions of the scalp unless external constriction is the primary mechanism of injury.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter.