title: Accuracy of centrally recorded OPCS codes for vascular surgery in the United Kingdom.
abstract: OBJECTIVE
  Centrally recorded OPCS codes are based upon district returns. The aim of this study is to determine the accuracy of this system with regard to vascular surgery.
  
  
  METHODS
  Prospectively recorded audit data for vascular and endovascular procedures were compared with those obtained from the Department of Health and Welsh Office. Five U.K. hospitals were involved in the study. Data were obtained for the twelve months, 1 April 1994-30 March 1995 (these being the most up to date figures available).
  
  
  RESULTS
  The total number of arterial reconstructions based on audit data was 1082. Those recorded by the OPCS codes were 743. This represents a discrepancy of -31.3% (range for the five hospitals: -13.1% to -63.8%). When examining specific codes similar discrepancies were seen. For example, in one hospital 38 AAA repairs were carried out but only two were centrally recorded. However, examination of ICD9 codes (relating to hospital admissions) for that hospital showed that 38 patients with AAA were admitted. A similar wide variation was seen when examining iliac and superficial femoral artery endovascular procedures. Despite the discrepancies of audit and OPCS data, the codes for reconstructions did reflect relative workload of the different hospitals.
  
  
  CONCLUSIONS
  This study shows that there is a marked underestimate of vascular workload when comparing central recorded data with that obtained from local audit. Marked variation is seen in the accuracy of data submitted from different hospitals.
authors.affiliation: Royal Berkshire Hospital, Reading, U.K.
authors.forename: R B
authors.initials: RB
authors.lastname: Galland
authors.forename: T R
authors.initials: TR
authors.lastname: Magee
authors.forename: D C
authors.initials: DC
authors.lastname: Berridge
authors.forename: G B
authors.initials: GB
authors.lastname: Hopkinson
authors.forename: M H
authors.initials: MH
authors.lastname: Lewis
authors.forename: S
authors.initials: S
authors.lastname: Shiralkar
authors.forename: S D
authors.initials: SD
authors.lastname: Parvin
mesh_terms: D000800:Angioplasty, Balloon; D003625:Data Collection / Q000592:standards; D005263:Femoral Artery / Q000601:surgery; D006753:Hospital Records / Q000145:classification; D006801:Humans; D007083:Iliac Artery / Q000601:surgery; D008499:Medical Records / Q000145:classification*; D006113:United Kingdom; D014600:Utilization Review / Q000592:standards; D014656:Vascular Surgical Procedures / Q000145:classification / Q000706:statistics & numerical data*; D016526:Workload