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. Author manuscript; available in PMC: 2023 Apr 1.
Published in final edited form as: Sleep Med. 2022 Mar 17;92:88–95. doi: 10.1016/j.sleep.2022.03.009

Table 3.

ICD code search for sleep problems compared to chart review

ICD code for sleep problem Chart review documents insomnia
Yes
Chart review mentions sleep problem other than insomnia
Yes
Chart review mentions “no sleep problem”
Yes
Chart review does not mention sleep
Yes
No 111 26 23 9
Yes 56 6 1 0