Body system	ICD-9-CM code
Neuromuscular
Brain and spinal cord malformations	740.0–742.9
Mental retardation	318.0–319.0
CNS degeneration and disease	330.0–337.9
Infantile cerebral palsy	343.0–343.9
Epilepsy	345.0–345.9
Muscular dystrophies	359.0–359.3
Cardiovascular
Heart and great vessel malformations	745.0–747.49
Cardiomyopathies	425.0–425.4, 429.1
Conduction disorders and dysrhythmias	426.0–427.4, 427.6–427.9
Respiratory
Respiratory malformations	748.0–748.9
Chronic respiratory disease Cystic fibrosis	770.7
Renal
Congenital anomalies	753.0–753.9
Chronic renal failure	585
Gastrointestinal
Congenital anomalies	750.3, 751.1–751.3, 751.6–751.9
Chronic liver disease and cirrhosis	571.4–571.9
Inflammatory bowel disease	550.556.9
Hematology and immunodeficiency
Sickle-cell disease	282.5–282.6
Hereditary anemias	282.0–282.4
Hereditary immunodeficiency	279.0–279.9, 288.1–288.2, 446.1
Human immunodeficiency virus	42
Metabolic
Amino acid metabolism	270.0–270.9
Carbohydrate metabolism	271.0–271.9
Lipid metabolism	272.0–272.9
Storage disorders	277.3, 277.5
Other metabolic disorders	275.0–275.3, 277.2, 277.4, 277.6, 277.8–277.9
Other congenital or genetic defect
Chromosomal anomalies	758.0–758.9
Bone and joint anomalies	259.4, 737.3, 756.0–756.5
Diaphragm and abdominal wall defects	553.3, 756.6–756.7
Other congenital anomalies	759.7
Malignancy
Malignancy	140.0–239.9
Cachexia and debility
Cachexia	799.4
Debility	799.3