ICD-10-CM > E00-E89 > E70-E88 > E84 E84 Cystic fibrosis Non-Billable/Non-Specific Includes mucoviscidosis Code Also exocrine pancreatic insufficiency (K86.81) Codes E84.0Cystic fibrosis with pulmonary manifestationsE84.1Cystic fibrosis with intestinal manifestationsE84.11Meconium ileus in cystic fibrosisE84.19Cystic fibrosis with other intestinal manifestationsE84.8Cystic fibrosis with other manifestationsE84.9Cystic fibrosis, unspecified