Urticaria, unspecified

This code represents a skin condition characterized by the sudden appearance of itchy, raised welts (hives) of unknown origin. It signifies a diagnosis of urticaria where the specific type or cause has not been identified or documented.

Use this code when the medical record clearly states a diagnosis of urticaria but provides no further specificity regarding its etiology (e.g., acute, chronic, allergic, idiopathic). This is appropriate when the physician has not yet determined the underlying cause or when the documentation simply states "urticaria."

• Avoid using this code if more specific documentation regarding the type or cause of urticaria is available (e.g., allergic urticaria, chronic idiopathic urticaria).
• Query the provider for more specific details if the documentation is ambiguous but suggests a more precise diagnosis.
• This code should be used as a last resort when no other specific urticaria code can be assigned based on the available clinical information.