ICD-10-CM > S00-T88 > S20-S29 > S26 > S26.9 > S26.99 S26.99 Other injury of heart, unspecified with or without hemopericardium Non-Billable/Non-Specific Codes S26.99XA..., initial encounterS26.99XD..., subsequent encounterS26.99XS..., sequela