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J Korean Soc Emerg Med > Volume 30(1); 2019 > Article
Journal of The Korean Society of Emergency Medicine 2019;30(1): 8-15.
상병코드와 행위수가코드를 이용한 심정지 환자 색인
조현별1, 이종석1 , 이창민2, 정기영1, 최한성1 , 홍훈표1
1경희대학교병원 응급의학과
2강동경희대학교병원 응급의학과
Identifying out-of-hospital cardiac arrest patients by using International Classification of Diseases codes and procedure code
Hyun Byul Cho1, Jong Seok Lee1 , Chang Min Lee2, Ki Young Jeong1, Han Sung Choi1 , Hoon Pyo Hong1
1Department of Emergency Medicine, Kyung Hee University Hospital, Seoul
2Department of Emergency Medicine, Kyung Hee University Hospital at Kangdong, Seoul, Korea
Correspondence  Jong Seok Lee ,Tel: 02-958-1637, Fax: 02-958-8746, Email: seok918@hanmail.net,
Received: July 2, 2018; Revised: September 11, 2018   Accepted: October 3, 2018.  Published online: February 28, 2019.
ABSTRACT
Objective:
This study was conducted to evaluate the validity of the International Classification of Diseases, 10th revision (ICD-10) codes for identifying patients who suffered out-of-hospital cardiac arrest (OHCA).
Method:
Consecutive data pertaining to adult patients who suffered OHCA or received ICD-10 codes for cardiac arrest were collected. Patient characteristics and clinical data during the period from January 2015 to December 2016 were obtained. The sensitivity and positive predictive value (PPV) of each code for identifying OHCA were calculated and an optimal algorithm using diagnostic and procedure codes to detect OHCA patients was selected. The kappa coefficient was calculated to examine the agreement between algorithm-detected cases and true OHCA patients.
Results:
A total of 397 patients were included in this study. The single use of ICD-10 codes was an insensitive method for identifying OHCA patients. Combination of diagnostic codes and procedure codes showed a good sensitivity (98.6%) and PPV (94.8%) for identifying OHCA patients. The agreement between the optimal algorithm and true OHCA was excellent (κ=0.970).
Conclusion:
Using ICD-10 codes for identifying OHCA patients is an insensitive method. The combination of ICD-10 codes and procedure codes can be an alternative search method.
Key words: ICD-10 codes; Procedure codes; Out-of-hospital cardiac arrest
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