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Table 1 Validation of Colectomy Procedural Codes

From: Postoperative complications following colectomy for ulcerative colitis: A validation study

Procedural codes Definition Total Codes (n) Colectomy (n) PPV
(95% CI)
45.7 or 45.8* Open and other partial excision of large intestine or total intra-abdominal colectomy 294 275 0.94
[0.90–0.96]
1.NM.87 Excision partial, large intestine 45 20 0.44
[0.31–0.59]
1.NM.89 Excision total, large intestine endoscopic 52 47 0.90
[0.79–0.96]
1.NM.91 Excision radical, large intestine 1 1 1.00
[0.21–1.00]
1.NQ.89 or 1.NQ.90 α Excision total, rectum or excision total with reconstruction, rectum using open approach with ileum 273 228 0.84
[0.79–0.87]
All colectomies   665 571 0.86
[0.830.88]
  1. * 1 chart identified coded with both 45.7 and 45.8 codes.
  2. α 3 charts identified coded with both 1.NQ.89 and 1.NQ.90 codes.