Skip to main content
. 2022 Aug 15;39(Suppl 3):S23–S29a. doi: 10.12788/fp.0303

eAPPENDIX.

Variable Definitions

Cohort definition ICD-9 diagnosis codes/beginnings
MGUS 273.1

Multiple myeloma 203.00, 203.01, 203.02

Mental and behavioral disorders
 Alcohol use disorder 303, 305.0
 Substance use disorder 304, 305.2–305.9
 Nicotine dependence 305.1, V15.82
 Major depressive disorder 311, 296.2, 296.3
 Posttraumatic stress disorder 309.81
 Schizophrenia or bipolar disorder 295, 296.0, 296.1, 296.4–296.8
 Anxiety 300.00–300.02
 Overweight or obesity 278.00, 278.01, 278.02

Other common conditions
 Dyslipidemia 272
 Hypertension 401–405

Charlson Comorbidity Index conditions
 Myocardial infarction 410, 412
 Heart failure 398.91, 402.01, 402.11, 402.91, 404.01, 404.03, 404.11, 404.13, 404.91, 404.93, 425.4–425.5, 425.7–425.9, 428
 Peripheral vascular disease 093.0, 437.3, 440, 441, 443.1, 443.2, 443.8, 443.9, 447.1, 557.1, 557.9, V43.4
 Cerebral vascular 362.34, 430–438
 Dementia 290, 294.1, 331.2
 COPD 416.8, 416.9, 490–496, 500–505, 506.4, 508.1, 508.8
 Rheumatic disease 446.5, 710.0, 710.1–710.4, 714.0–714.2, 714.8, 725
 Peptic ulcer disease 531–534
 Cirrhosis of the liver 070.22, 070.23, 070.32, 070.33, 070.44, 070.54, 070.6, 070.9, 570, 571, 573.3, 573.4, 573.8, 573.9, V42.7
 Diabetes mellitus without complications 250.0–250.3, 250.8–250.9
 Diabetes mellitus with complications 250.4–250.7
 Hemiplegia, paraplegia 334.1, 342, 343, 344.0–344.6, 344.9
 Renal disease 403.01, 403.11, 403.91, 404.02, 404.03, 404.12, 404.13, 404.92, 404.93, 582, 583.0, 583.1, 583.2, 583.4, 583.6, 583.7, 585, 586, 588.0, V42.0, V45.1, V56
 Other cancers 140–172, 174–195, 200–208, 238.6
 Liver failure 456.0–456.2, 572.2–572.4, 572.8
 Metastatic solid tumors (omitted from index) 196–199
 HIV/AIDS 042, 043, 044

Procedures (treatment)
 HCT: ICD-9 procedure codes 41.0, 41.00, 41.04, 41.07, 41.09
 HCT: ICD-10 procedure codes 30230Y0, 30233Y0, 30240Y0, 30243Y0, 30230C0, 30233C0, 30240C0, 30243C0
 HCT: CPT code 38241

Abbreviations: HCT, hematopoietic cell transplantation; ICD, International Classification of Diseases; MGUS, monoclonal gammopathy of undetermined significance.