Table 5.

ICD-9 Definitions for Risk Factors

Risk Factor	ICD-9 Definition
Secondary Osteoporosis	Diabetes mellitus, type 1 (ICD-9 250.x1, 250.x3), osteogenesis imperfecta (ICD-9 756.51), hyperthyroidism (ICD-9 242.x), premature menopause (ICD-9 256.3), malnutrition (ICD-9 260–263), malabsorption (ICD-9 579.x), or chronic liver disease or cirrhosis (ICD-9 571)
Previous High-Risk Fracture	Humeral fractures (ICD-9 812.X, 733.11); Colles’ fracture of wrist (ICD-9 813.41, 813.51, 733.12); spinal compression fracture (ICD-9 805.2, 805.4, 805.6, 805.8, 733.13, 829, V15.51); and hip fracture (ICD-9 820.X, 733.14)
Rheumatoid Arthritis	Rheumatoid arthritis or other inflammatory polyarthropathies (ICD-9 714.xx)
Alcohol Abuse	Alcohol dependence or abuse (ICD-9 303.X, 305.0), alcohol psychosis and withdrawal (ICD-9 291.1-291.9), or alcoholic liver disease (ICD-9 571.1-571.2).

Abbreviations: ICD-9 International Classification of Diseases, Ninth Edition