preferred_name: Yes, patient has unobservable stasis ulcers ONLY (known but not observable due to non-removable dressing/device)
preferred_name_lc: yes, patient has unobservable stasis ulcers only (known but not observable due to non-removable dressing/device)
label: Yes, patient has unobservable stasis ulcers ONLY (known but not observable due to non-removable dressing/device)
label_lc: yes, patient has unobservable stasis ulcers only (known but not observable due to non-removable dressing/device)