Ill. Admin. Code tit. 77, § 1125.540
c) Historical Referrals
If the applicant is an existing facility and is proposing to establish this category of service, the applicant shall document the number of referrals to other facilities, for each proposed category of service, for each of the latest two years. Documentation of the referrals shall include: resident/patient origin by zip code; name and specialty of referring physician or identification of another referral source; and name and location of the recipient LTC facility.
d) Projected Referrals
An applicant proposing to establish a category of service or establish a new LTC facility shall submit the following:
e) Projected Service Demand − Based on Rapid Population Growth
If a projected demand for service is based upon rapid population growth in the applicant facility's existing market area (as experienced annually within the latest 24-month period), the projected service demand shall be determined as follows: