Other urticaria

This code represents various forms of urticaria (hives) that do not fit into more specific categories such as allergic, idiopathic, or cold-induced urticaria. It encompasses chronic or acute urticarial conditions with identified causes that are not explicitly classified elsewhere.

Use this code when the medical record documents urticaria due to a specific, identifiable cause not covered by other L50 subcategories, such as pressure urticaria, solar urticaria, or aquagenic urticaria. Documentation should clearly state the type of urticaria and its specific etiology if known, or indicate it as "other specified urticaria."

• Do not use this code for unspecified urticaria; refer to L50.9 for those cases.
• Ensure the documentation specifies the type of urticaria to justify using a more precise code than L50.9.
• Consider an additional code for the underlying cause or associated condition if applicable and documented.