Table 9.
These conditions represent a subset of all possible chronic conditions that may be experienced by individuals over a lifetime but represent the most substantial conditions from a population perspective.
| Condition [reference for validated algorithm] | ICD 9 / OHIP | ICD 10 | ODBa |
|---|---|---|---|
| Acute Myocardial Infarction (AMI) [1] | 410 | I21, I22 | |
| Osteo- and other Arthritis: | |||
| (A) Osteoarthritis | 715 | M15-M19 | |
| (B) Other Arthritis (includes Synovitis, Fibrositis, Connective tissue disorders, Ankylosing spondylitis, Gout Traumatic arthritis, pyogenic arthritis, Joint derangement, Dupuytren’s contracture, Other MSK disorders) | 727, 729, 710, 720, 274, 716, 711, 718, 728, 739 | M00-M03, M07, M10, M11-M14, M20-M25, M30-M36, M65-M79 | |
| Arthritis - Rheumatoid arthritis [2] | 714 | M05-M06 | |
| Asthma [3] | 493 | J45 | |
| (all) Cancers | 140–239 | C00-C26, C30-C44, C45-C97 | |
| Cardiac Arrhythmia | 427 (OHIP) / 427.3 (DAD) | I48.0, I48.1 | |
| Congestive Heart Failure [4] | 428 | I500, I501, I509 | |
| Chronic Obstructive Pulmonary Disease [5] | 491, 492, 496 | J41, J43, J44 | |
| Coronary syndrome (excluding AMI) | 411–414 | I20, I22-I25 | |
| Dementia [6] | 290, 331 (OHIP) / 046.1, 290.0, 290.1, 290.2, 290.3, 290.4, 294, 331.0, 331.1, 331.5, F331.82 (DAD) | F00, F01, F02, F03, G30 | Cholinesterase Inhibitors |
| Diabetes [7] | 250 | E08 - E13 | |
| Hypertension [8] | 401, 402, 403, 404, 405 | I10, I11, I12, I13, I15 | |
| Inflomatary Bowel Disease (IBD) [9] | 555, 556 | K50, k51 | |
| (Other) Mental Illnesses | 291, 292, 295, 297, 298, 299, 301, 302, 303, 304, 305, 306, 307, 313, 314, 315, 319 | F04, F050, F058, F059, F060, F061, F062, F063, F064, F07, F08, F10, F11, F12, F13, F14, F15, F16, F17, F18, F19, F20, F21, F22, F23, F24, F25, F26, F27, F28, F29, F340, F35, F36, F37, F430, F439, F453, F454, F458, F46, F47, F49, F50, F51, F52, F531, F538, F539, F54, F55, F56, F57, F58, F59, F60, F61, F62, F63, F64, F65, F66, F67, F681, F688, F69, F70, F71, F72, F73, F74, F75, F76, F77, F78, F79, F80, F81, F82, F83, F84, F85, F86, F87, F88, F89, F90, F91, F92, F931, F932, F933, F938, F939, F94, F95, F96, F97, F98 | |
| Mood, anxiety, depression and other nonpsychotic disorders | 296, 300, 309, 311 | F30, F31, F32, F33, F34 (excl. F34.0), F38, F39, F40, F41, F42, F43.1, F43.2, F43.8, F44, F45.0, F45.1, F45.2, F48, F53.0, F68.0, F93.0, F99 | |
| Osteoporosis | 733 | M81, M82 | |
| Renal failure | 403, 404, 584, 585, 586, v451 | N17, N18, N19, T82.4, Z49.2, Z99.2 | |
| Stroke (excluding transient ischemic attack) | 430, 431, 432, 434, 436 | I60-I64 |
Abbreviations: ICD International Classification of Disease, ODB Ontario Drug Benefit program database, OHIP Ontario Health Insurance Plan, physician billings database
All case definitions look back to 2001 to ascertain disease status, with the exception of AMI (1 year prior to index), Cancer (2 years), Mood Disorder (2 years) and Other Mental Illnesses (2 years)
AMI, Asthma, COPD, CHF, Dementia, Diabetes Hypertension and Rheumatoid Arthritis are based on validated case algorithms (see Sources 1–8 below, respectively). All other conditions required at least one diagnosis recorded in acute care (CIHI) or two diagnoses recorded in physician billings within a two-year period
aODB prescription drug records are not available for the majority of persons under the age of 65