Nonvenereal endemic syphilis

This code describes endemic syphilis, also known as bejel or nonvenereal syphilis, a chronic treponemal infection primarily affecting skin, mucous membranes, and bone. It is distinct from venereal syphilis in its mode of transmission, which is typically non-sexual, often through direct contact with infectious lesions or shared eating utensils. The disease progresses through primary, secondary, and late stages, similar to venereal syphilis, but without a congenital form.

Use this code when documentation explicitly states a diagnosis of endemic syphilis, bejel, or nonvenereal syphilis. This code is appropriate for cases where the infection is acquired through non-sexual contact, typically in regions where the disease is prevalent. Supporting documentation should include clinical findings consistent with endemic syphilis and, ideally, serological test results confirming treponemal infection.

• Differentiate carefully from venereal syphilis (codes in the 090-097 range) based on documented mode of transmission or clinical presentation.
• Do not use this code for congenital syphilis (090.x) or other treponemal diseases like yaws (102.x) or pinta (103.x).
• Ensure the medical record specifies "endemic" or "nonvenereal" to justify the use of this specific code.