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Table 1 Comorbidities of interest

From: Changes in healthcare utilization and costs associated with sildenafil therapy for pulmonary arterial hypertension: a retrospective cohort study

Comorbidity

Definition

Connective tissue diseases

ICD-9-CM diagnoses 710.0, 710.1, 714.X, 710.3, 710.4

Congenital heart diseases

ICD-9-CM diagnoses 745.3, 745.4, 745.5, 745.6, 747.0

HIV/AIDS

ICD-9-CM diagnoses 042, 079.53, V08

Depressive disorders

ICD-9-CM diagnoses 311, 296.2X, 296.3X, 296.5X, 296.82, 300.4, 298.0, 309.0, 309.28, 309.1

Anxiety disorders

ICD-9-CM diagnoses 300.XX, 301.XX, 309.21

Sleep disorders

ICD-9-CM diagnoses 780.57, 780.50, 780.51, 780.53, 307.4X, 780.5X, V69.4

Lung disease

 

Asthma

ICD-9-CM diagnoses 493.XX

Chronic obstructive pulmonary disease

ICD-9-CM diagnoses 491.XX, 492.XX, 496.XX

Pulmonary fibrosis

ICD-9-CM diagnoses 515, 516.3

Cerebrovascular disease

ICD-9-CM diagnoses 430-438.XX

Coronary heart disease

ICD-9-CM diagnoses 410-414.XX

Atrial fibrillation

ICD-9-CM diagnoses 427.3

Congestive heart failure

ICD-9-CM diagnoses 428.XX

Peripheral vascular disease

ICD-9-CM diagnoses 440.2X, 440.3X, 443.9X, 444.22

Hemtaological conditions

ICD-9-CM diagnoses 282.6, 282.49, 289.6, 205.1X

Liver disease

ICD-9-CM diagnoses 572.3, 006.3, 070.22, 070.32, 070.33, 070.44, 070.54, 456.0-456.21, 570-572.29, 572.4- 573.9, 996.82, V42.7

Renal disease

ICD-9-CM diagnoses 293.9, 294.8, 276.0-276.9, 458.21, 567.XX, 584.XX-586.XX, 792.5, 996.1, 996.62, 996.56, 996.68, 996.73, 999.2, 999.3, 999.9, V45.1, V56.0, V56.1, V56.2, V56.3X, V56.8, E87.02, E87.91; ICD-9-CM procedures 39.42, 39.43, 39.93, 39.94, 39.9

Diabetes

ICD-9-CM diagnoses 250.XX; receipt of alpha-glucosidase inhibitors, insulin, metformin, nonsulfonylurea insulin secretagogues, sulfonylurea, or thiazolidinedione

Neoplasms

ICD-9-CM diagnosis 140.XX-209.XX, 230.XX-238.XX

  1. HIV/AIDS: Human immunodeficiency virus/Acquired Immune Deficiency Syndrome.