Table 1.
Conditions included in autoimmune definition
| Autoimmune condition | ICD-9-CM | Sepsis | Septic shock |
|---|---|---|---|
| All autoimmune conditions | – | N = 496 | N = 328 |
| Rheumatoid arthritis | 714 | 130 (26.21%) | 92 (28.05%) |
| Crohn’s disease | 555 | 114 (22.98%) | 85 (25.91%) |
| Ulcerative colitis | 556.5, 556.6, 556.8, 556.9 | 86 (17.34%) | 57 (17.38%) |
| Multiple sclerosis | 340 | 64 (12.90%) | 40 (12.20%) |
| Systemic lupus erythematosus | 710.0 | 52 (10.48%) | 40 (12.20%) |
| Ankylosing spondylitis | 720 | 23 (4.64%) | 16 (4.88%) |
| Psoriatic arthritis | 696.0 | 20 (4.03%) | 11 (3.35%) |
| Myasthenia gravis | 358.0 | 16 (3.23%) | 9 (2.74%) |
| Inflammatory myopathies | 710.4, 710.3, 359.71 | 12 (2.41%) | 6 (1.83%) |
| Polymyositis | 710.4 | 9 (1.80%) | 5 (1.52%) |
| Dermatomyositis | 710.3 | 1 (0.20%) | 1 (0.30%) |
| Inclusion body myositis | 359.71 | 2 (0.40%) | 0 (0.00%) |
| Giant cell arteritis | 446.5 | 11 (2.22%) | 4 (1.22%) |
| Systemic sclerosis | 710.1 | 10 (2.01%) | 7 (2.13%) |
| Scleroderma | 701.1 | 9 (1.81%) | 7 (2.13%) |