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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.

From: Role of Interprofessional primary care teams in preventing avoidable hospitalizations and hospital readmissions in Ontario, Canada: a retrospective cohort study

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

 
  1. Abbreviations: ICD International Classification of Disease, ODB Ontario Drug Benefit program database, OHIP Ontario Health Insurance Plan, physician billings database
  2. 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)
  3. 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
  4. aODB prescription drug records are not available for the majority of persons under the age of 65
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BMC Health Services Research

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