Table A2. NICE guideline referral categories based on clinical presentation.

Mandated referral under NICE guidelines (or good clinical practice)	Clear evidence for mandated urgent referral as per NICE CG27
	Good clinical medicine would mandate urgent referral
Possible referral under NICE guidelines	Possible mandated urgent referral as per NICE CG27—but duration dependent
	Possible mandated urgent referral as per NICE CG27—but severity dependent
	Possible mandated urgent referral as per NICE CG27—but location dependent
	Possible mandated urgent referral as per NICE CG27—but dependent upon sense of abnormality
	Possible mandated urgent referral as per NICE CG27—other
Mandated investigation under NICE guidelines	Clear evidence of mandated investigation as per NICE CG27
Possible investigation under NICE guidelines	Possible mandated investigation as per NICE CG27—but duration dependent
	Possible mandated investigation as per NICE CG27—but severity dependent
	Possible mandated investigation as per NICE CG27—but location dependent
	Possible mandated investigation as per NICE CG27—but dependent upon sense of abnormality
	Possible mandated investigation as per NICE CG27—other
No action under NICE guidelines	No mandated action from NICE CG27

Abbreviation: NICE=National Institute for Health and Care Excellence.