ICD-10-CM > S00-T88 > S20-S29 > S24 > S24.4 S24.4 Injury of thoracic sympathetic nervous system Non-Billable/Non-Specific Applicable To Injury of cardiac plexusInjury of esophageal plexusInjury of pulmonary plexusInjury of stellate ganglionInjury of thoracic sympathetic ganglion Codes S24.4XXA..., initial encounterS24.4XXD..., subsequent encounterS24.4XXS..., sequela