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Table 3 Association between diagnostic code position and identification of hypoglycemia

From: Validation of ICD-9-CM coding algorithm for improved identification of hypoglycemia visits

  Total confirmed hypoglycemia cases
ICD-9-CM position n (%) 250.8x 251.20 962.30 Other
1st 319 (73) 287 18 12 2
2nd 85 (19) 55 29 0 1
3rd 21 (5) 14 6 0 1
4th or higher 11 (3) 7 3 1 0
Total 436 363 56 13 4
  1. ICD-9-CM – International Classification of Diseases, Ninth Revision