Homosexuality was listed in ICD 9 and earlier.  ICD 9 was created in about 1975 - 1978.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;International_Statistical_Classification_of_Diseases_and_Related_Health_Problems#ICD-9" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;International_Statistical_Clas...</a><p>Homosexuality was removed from ICD 10.  ICD 10 was created in about 1983 - 1990<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;International_Statistical_Classification_of_Diseases_and_Related_Health_Problems#ICD-10" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;International_Statistical_Clas...</a><p>Individual countries may be using their own definitions.  EG US uses DSM.<p>DSM included homosexuality in the first version published in about 1952, but it was scrutinised early and homosexuality was removed from DSM in 1973.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Homosexuality#Psychology" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Homosexuality#Psychology</a><p>Things like conversion therapy have been weirdly hard to stop, even with clear advice from professional bodies and regulators that it&#x27;s probably harmful and has no evidence of efficacy or usefulness.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Conversion_therapy" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Conversion_therapy</a>