'Fair care for trans and non-binary people
An RCN guide for nursing and health care professionals
Third edition'
2020
The glossary, p15, lists 'eunuch' under 'gender identity':
'Gender identity: a person’s intrinsic sense of being male (boy or man), female (girl or woman) or an alternative gender, for example transgender, girlboy, boygirl, eunuch, genderqueer'
www.rcn.org.uk/Professional-Development/publications/rcn-fair-care-trans-non-binary-uk-pub-009430
This is also quite surprising:
'Children
Gender-variant children and young people should be accorded the same respect for their self-defined (or true) gender as trans and non-binary adults are, regardless of their internal or external sex characteristics, including genitals.
Where there is no segregation in respect of issues like accomodation, as is often the case with children, there may be no requirement to treat a young gender-variant person any differently from other children and young people.
Where segregation is needed, then this should be in accordance with the dress, preferred name/and or stated gender identity of the child or young person.'
[Bold mine.]