Table 3 Overlap in mapping of diagnosis codes for each comorbidity comprising the CCI between coding algorithms
Comorbid condition | ICD-9-CM, n (%) | ICD-10-CM, n (%) | ||||
|---|---|---|---|---|---|---|
Both | SNOMED CT onlya | Quan onlya | Both | SNOMED CT Onlya | Quan onlya | |
Myocardial infraction | 42 (100%) | 0 (0%) | 0 (0%) | 24 (92.3%) | 2 (7.7%) | 0 (0%) |
Congestive heart failure | 33 (97.1%) | 1 (2.9%) | 0 (0%) | 40 (93%) | 1 (2.3%) | 2 (4.7%) |
Peripheral vascular disease | 48 (90.6%) | 4 (7.5%) | 1 (1.9%) | 319 (94.4%) | 13 (3.8%) | 6 (1.8%) |
Cerebrovascular disease | 91 (94.8%) | 5 (5.2%) | 0 (0%) | 531 (96.9%) | 17 (3.1%) | 0 (0%) |
Dementia | 22 (84.6%) | 4 (15.4%) | 0 (0%) | 18 (100%) | 0 (0%) | 0 (0%) |
Chronic pulmonary disease | 58 (95.1%) | 2 (3.3%) | 1 (1.6%) | 85 (97.7%) | 1 (1.1%) | 1 (1.1%) |
Rheumatic disease | 14 (82.4%) | 2 (11.8%) | 1 (5.9%) | 465 (78.5%) | 125 (21.1%) | 2 (0.3%) |
Peptic ulcer disease | 112 (100%) | 0 (0%) | 0 (0%) | 40 (100%) | 0 (0%) | 0 (0%) |
Mild liver disease | 27 (73%) | 9 (24.3%) | 1 (2.7%) | 48 (80%) | 12 (20%) | 0 (0%) |
Diabetes without chronic complications | 30 (81.1%) | 7 (18.9%) | 0 (0%) | 72 (75%) | 21 (21.9%) | 3 (3.1%) |
Diabetes with chronic complications | 20 (35.7%) | 36 (64.3%) | 0 (0%) | 270 (60.7%) | 175 (39.3%) | 0 (0%) |
Hemiplegia or paraplegia | 48 (87.3%) | 7 (12.7%) | 0 (0%) | 55 (83.3%) | 11 (16.7%) | 0 (0%) |
Renal disease | 46 (79.3%) | 12 (20.7%) | 0 (0%) | 34 (65.4%) | 18 (34.6%) | 0 (0%) |
Malignancy, except skin neoplasms | 738 (98.1%) | 14 (1.9%) | 0 (0%) | 1177 (88.4%) | 30 (2.3%) | 124 (9.3%) |
Moderate or severe liver disease | 9 (100%) | 0 (0%) | 0 (0%) | 21 (80.8%) | 5 (19.2%) | 0 (0%) |
Metastatic solid tumor | 47 (87%) | 7 (13%) | 0 (0%) | 62 (83.8%) | 12 (16.2%) | 0 (0%) |
AIDS/HIV | 1 (100%) | 0 (0%) | 0 (0%) | 1 (100%) | 0 (0%) | 0 (0%) |