that is very helpful thanks Watermonster. I also have the following:
re. the policy which is now inaccessible from the website 'due to review' but I copied it onto this document (it seems to be restricted from sharing on Word). I zipped through it quickly and noted the worst sections.
4.1.3 Includes people who do not identify with the sex or gender they were born on a part-time basis within the definition of 'transgender' in their 'Definitions' list.
p6.4 They need to replace gender with Sex as the actual protected characteristic. 
p7.2 They observe that the term 'transsexual' used in the EA 2010 is 'outdated' and we now use 'trans' or 'transgender'. They can't just change the wording of a law for fashion.
p7.2.2 Intersex is mentioned several times (also in the Definitions) in a way that links it with trans despite people with DSDs asking many times to not have their conditions conflated with trans.
p7.4 holding information on Gender not on Sex may breach GDPR
p7.5 Staff disclosing a patient's trans status may be subject to prosecution so how can they possibly even have a conversation with another patient concerned about the presence of an opposite sex person in the single sex ward.
p7.6.1 + 2 conflating 'intersex' with trans and non-binary again. Non binary is not recognised in law. The recent Employment Tribunal did not set a precedent.
9.1 Intersex or DSDs is a medical condition, not something that a person can 'identify as'. This is demonstrating a total lack of understanding of DSDs which, for a medical setting is concerning.
10.1 Allowing patients to be admitted to an 'inpatient bedroom' (ward?) based on the gender they identify as. This is totally not in line with the EA 2010 Explanatory Notes Pt 7 para 27 - hospital wards specifically allow discrimination based on sex to exclude male people from a single sex female ward. www.legislation.gov.uk/ukpga/2010/15/notes/division/3/16/20/7
- Allowing a person to completely erase their medical records seems reckless for the future healthcare - they may not understand the implications of this.
12.2 This means wards are no longer single sex and will affect all other occupants. This is not reflected in the EIA.
12.5 The decision to admit to a 'gender' specific ward (should be sex) should absolutely be based on the sex of the patient. Anything other than this is not in accordance with the EA 2010 notes above.
12.7 The EA 2010 is very specific (see notes above). It is proportionate to exclude people based on their sex in all single sex hospital wards - it is not to be assessed on a 'case by case basis' ie. per patient as this implies.
12.8 This could put staff in an impossible position - not being able to explain why Uncle Derek is on the women's ward. Do they really want to make things more difficult for NHS staff??
14.1 What about the risk to women with a male on the ward? (include in EIA)
14.3 Are busy staff going to have time to arbitrate in this delicate situation? Especially if they can't disclose a person's trans status.
14.5 This is inhuman! Basing the risk assessment of a sexual offender being admitted into a single sex ward on whether they are prescribed anti-libidinous medication is totally unrealistic and is totally unsuitable for all involved - please delete immediately.
15.1 Should be based on Sex
15.2 It is lawful in all cases
17 Are hair removal services offered to all patients that require it?
18 Define transphobic so it does not include people that know humans can't change sex and women that object to males in single sex spaces.
23 Again, mis-states the protected characteristics in the EA 2010 - SEX!!
App 1 please read the actual EA 2010, not the Stonewall version.
App 2 Mermaids is a very questionable resource to be passing on.
there's a bazillion other things wrong with it but these were the ones that jumped out.