ICD-10-CM > A00-B99 > A30-A49 > A39 > A39.5 A39.5 Meningococcal heart disease Non-Billable/Non-Specific Codes A39.50Meningococcal carditis, unspecifiedA39.51Meningococcal endocarditisA39.52Meningococcal myocarditisA39.53Meningococcal pericarditis