title: [Computer program for improved diagnostic coding in ophthalmology based on the expanded ICD 10].
abstract: BACKGROUND
  The coding of ophthalmological diagnoses is a long-standing problem that has recently been highlighted by the planned introduction of ICD 10.
  
  
  METHODS
  Using an alphanumerical classification system for the first time, ICD 10 offers the space needed for necessary expansion without leading once again to dislocations in the numbering system. The FoxPro 2.5 database system was used to create a program based on an expanded ICD 10 that can be applied from DOS and Windows.
  
  
  RESULTS
  ICD 10 was expanded by the addition of a numerical fifth digit, thus increasing the number of classifiable ophthalmological disorders by a factor of 4.2 from 390 to 1635. The new program greatly facilitates the handling of this substantial amount of data.
  
  
  CONCLUSIONS
  The enhanced diagnosis coding achieved with the expanded ICD 10 permits nosologically exact statistics to be kept for use as a basis for further scientific work.
authors.affiliation: Augenklinik der Universität Rostock.
authors.forename: J
authors.initials: J
authors.lastname: Kuchenbecker
authors.forename: O
authors.initials: O
authors.lastname: Ehrt
authors.forename: R
authors.initials: R
authors.lastname: Guthoff
mesh_terms: D003626:Data Display; D003628:Database Management Systems; D016208:Databases, Factual; D001330:Electronic Data Processing; D005128:Eye Diseases / Q000145:classification / Q000175:diagnosis*; D006801:Humans; D012984:Software
vernacular_title: Computerprogramm für eine verbesserte Diagnoseverschlüsselung in der Ophthalmologie auf der Grundlage einer erweiterten ICD 10.