Table 1 ICD-9 and ICD-10 codes used to capture avoidable hospitalizations as defined by the Canadian Institutes for Health Information

Grand mal status and other epileptic convulsions

ICD-9/9-CM: 345

ICD-10-CA: G40, G41

Chronic obstructive pulmonary disease

Any most responsible diagnosis code of

ICD-9/9-CM: 491, 492, 494, 496

ICD-10-CA: J41, J42, J43, J44, J47

Most responsible diagnosis of acute lower respiratory infection, only when a secondary diagnosis of J44 in

ICD-10-CA or 496 in ICD-9/9-CM is also present

ICD-9/9-CM: 466, 480–486, 487.0

ICD-10-CA: J10.0, J11.0, J12–J16, J18, J20, J21, J22

Asthma

ICD-9/9-CM: 493

ICD-10-CA: J45

Diabetes

ICD-9: 250.0, 250.1, 250.2, 250.7

ICD-9-CM: 250.0, 250.1, 250.2, 250.8

ICD-10-CA: E10.0, E10.1, E10.63, E10.64, E10.9

E11.0, E11.1, E11.63, E11.64, E11.9

E13.0, E13.1, E13.63, E13.64, E13.9

E14.0, E14.1, E14.63, E14.64, E14.9

Heart failure and pulmonary edema

ICD-9/9-CM: 428, 518.4

ICD-10-CA: I50, J81

Hypertension

ICD-9/9-CM: 401.0, 401.9, 402.0, 402.1, 402.9

ICD-10-CA: I10.0, I10.1, I11

Angina

ICD-9: 411, 413

ICD-9-CM: 411.1, 411.8, 413

ICD-10-CA: I20, I23.82, I24.0, I24.8, I24.9

Cardiac procedure codes for exclusion

Codes for exclusion applied to heart failure and pulmonary edema, hypertension, and angina:

CCP: 47^^, 480^–483^, 489.1, 489.9, 492^–495^, 497^, 498^

ICD-9-CM: 336, 35^^, 36^^, 373^, 375^, 377^, 378^, 379.4–379.8

CCI: 1.HA.58.^^, 1.HA.80.^^, 1.HA.87.^^, 1.HB.53.^^, 1.HB.54.^^, 1.HB.55.^^, 1.HB.87.^^, 1.HD.53.^^, 1.HD.54.^^, 1.HD.55.^^, 1.HH.59.^^, 1.HH.71.^^, 1.HJ.76.^^, 1.HJ.82.^^, 1.HM.57.^^, 1.HM.78.^^, 1.HM.80.^^, 1.HN.71.^^, 1.HN.80.^^, 1.HN.87.^^, 1.HP.76.^^, 1.HP.78.^^, 1.HP.80.^^, 1.HP.82.^^, 1.HP.83.^^, 1.HP.87.^^, 1.HR.71.^^, 1.HR.80.^^, 1.HR.84.^^, 1.HR.87.^^, 1.HS.80.^^, 1.HS.90.^^, 1.HT.80.^^, 1.HT.89.^^, 1.HT.90.^^, 1.HU.80.^^, 1.HU.90.^^, 1.HV.80.^^, 1.HV.90.^^, 1.HW.78.^^, 1.HW.79.^^, 1.HX.71.^^, 1.HX.78.^^, 1.HX.79.^^, 1.HX.80.^^, 1.HX.83.^^, 1.HX.86.^^, 1.HX.87.^^, 1.HY.85.^^, 1.HZ.53 rubric (except 1.HZ.53.LA-KP), 1.HZ.54.^^, 1.HZ.55 rubric (except 1.HZ.55.LA-KP), 1.HZ.56.^^, 1.HZ.57.^^, 1.HZ.59.^^, 1.HZ.80.^^, 1.HZ.85.^^, 1.HZ.87.^^, 1.IF.83.^^, 1.IJ.50.^^, 1.IJ.54.GQ-AZ, 1.IJ.55.^^, 1.IJ.57.^^, 1.IJ.76.^^, 1.IJ.80.^^, 1.IJ.86.^^, 1.IK.50.^^, 1.IK.57.^^, 1.IK.80.^^, 1.IK.87.^^, 1.IN.84.^^, 1.LA.84.^^, 1.LC.84.^^, 1.LD.84.^^, 1.YY.54.LA-NJ, 1.YY.54.LA-FS, 1.YY.54.LA-NM, 1.YY.54.LA-FR, 1.YY.54.LA-FU