Posibleng Mga Sanhi para sa Hypercapnia Pulmonya na sanhi ng Bakterya COVID-19 Anemia Streptococcal na Impeksyon Hika Chronic na Obstructive Pulmonary Disease Pulmunya Acidosis Congestive Heart Failure Pulmonary Edema Sleep Apnea Obstructive Sleep Apnea Pagka-overdose sa Opiate Malalang Respiratory Distress Syndrome Status Epilepticus Aspiration Pneumonia Mendelson's Syndrome Duchenne Muscular Dystrophy Pagdepende sa Heroin Malalang Cor Pulmonale Malalang Respiratory Failure Neonatal Respiratory Distress Syndrome General Anesthesia Kyphoscoliosis Anaphylaxis Cystic Fibrosis Ankylosing Spondylitis Mycoplasma Pneumonia Guillain-Barré Syndrome Pseudomonas na Impeksyon