A30.0

What This Code Means

Indeterminate leprosy is the earliest form of Hansen's disease, a bacterial infection caused by Mycobacterium leprae that affects the skin and nerves. At this stage, the disease has not yet developed the characteristic features that would classify it into other types of leprosy.

Coding Tips

• •This code is used when leprosy is newly diagnosed but has not yet progressed to a classifiable form; always verify the clinical documentation confirms indeterminate classification rather than another leprosy type
• •Remember that leprosy is a reportable disease in most jurisdictions, so ensure proper public health reporting is completed alongside coding