From: Validation of ICD-9-CM coding algorithm for improved identification of hypoglycemia visits
ICD-9-CM code* | n (%) | Valid exclusion (%) | PPV (95%CI) |
---|---|---|---|
681.xx (cellulitis fingers/toes) | 9 (4) | 9 (5) | 100% |
682.xx (other cellulitis) | 86 (43) | 78 (41) | 91% (83–96) |
686.90 (local skin infection) | 6 (3) | 6 (3) | 100% |
707.xx (ulcers of lower limb) | 92 (46) | 90 (47) | 98% (94–100) |
730.27 (osteomyelitis ankle/foot) | 2 (1) | 2 (1) | 100% |
731.8 (other osteomyelitis) | 6 (3) | 6 (3) | 100% |
Total | 201 | 191 | 95% (91–98) |