Supplemental Table 2: International Classification of Diseases (ICD) codes and descriptions for dementia risk factors and comorbidities
Risk factor/comorbidity Description ICD-9 code ICD-10 code
Smoking
Current or past history of smoking.
Based on patient self-report.
NA NA
Alcohol use disorder
Inpatient and outpatient diagnoses
291x, 303x, 305.0x
F10x
Other substance use disorder
Inpatient and outpatient diagnoses
292x, 304x,
305.2-305.9 F11x-F19x
Cardiovascular disease Inpatient and outpatient diagnoses
Cerebrovascular disease:
433x, 434x, 435x, 436x, 437x
Peripheral Vascular Disease:
440.2x, 443.1, 443.81, 443.89, 443.9
Heart Failure:
402x, 404x, 428x
Coronary Heart Disease:
410x, 411x, 413x, 414x
Cerebrovascular disease:
I63x, I66x, I67x, I68x
Peripheral Vascular Disease:
E08.5x, E09.5x, E10.5x, E11.5x, E13.5x, I70x, I73x, I79x,
Heart Failure:
I11.0, I13.0, I13.2, I50x
Coronary Heart Disease:
I20x, I21x, I22x, I24x, I25x
Hypertension Two outpatient, non-emergency department diagnoses OR
One outpatient,
401x-405x, 437.2
I10, I11, I11.0, I11.9, I12, I12.0, I12.9, I13, I13.0, I13.1, I13.10, I13.11, I13.2, I15, I15, I15.1, I15.2, I15.8, I15.9, I67.4
non-emergency department diagnosis AND receipt of antihypertensive medication.
Dyslipidemia
One outpatient, non-emergency department diagnosis OR
One prescription of a lipid-lowering medication OR
≥160 mg/dL for low-density lipoprotein (LDL) in laboratory database.
272x, 414.3 E78x
Diabetes mellitus Inpatient and outpatient
diagnoses 250.00, 250.02 E11.9
Obesity
Body mass index
≥30 kg/m2. Based on height and weight measurements.
NA NA
Depression
Inpatient and outpatient diagnoses
296.2x, 296.3x, 296.82, 298.0x, 300.4x, 301.12x, 311x
F32x, F33x, F34x
