ICD-10-CM > S00-T88 > S20-S29 > S25 > S25.4 > S25.40 > S25.409 S25.409 Unspecified injury of unspecified pulmonary blood vessels Non-Billable/Non-Specific Codes S25.409A..., initial encounterS25.409D..., subsequent encounterS25.409S..., sequela