A91

What This Code Means

Dengue hemorrhagic fever is a severe form of dengue infection transmitted by mosquitoes, characterized by bleeding, low platelet counts, and potentially life-threatening complications. It occurs when a person is infected with dengue virus a second time, typically with a different strain than their initial infection.

Coding Tips

• •Verify documentation clearly states 'dengue hemorrhagic fever' or 'DHF' to distinguish from uncomplicated dengue fever (A90), as hemorrhagic manifestations are required for this code
• •This code includes dengue shock syndrome; do not assign additional codes for shock unless the documentation specifies a different type of shock unrelated to the dengue infection