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J Am Med Inform Assoc 8:92-100 doi:10.1136/jamia.2001.0080092
  • Original Investigation

Classifications in Routine Use

Table 7

Distribution of Surgical Procedures with Four-digit and Three-digit OPS-301 Codes

General Surgery Neurosurgery Trauma Surgery
Four-digit Three-digit Four-digit Three-digit Four-digit Three-digit
Different OPS-301-codes: 267 68 96 33 169 54
Surgical procedures per code:
 Median 7 17 11 4 8 4.5
 Minimum 1 1 1 1 1 1
 Maximum 2,386 2,876 1,666 2,425 1,003 2,058

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