ICD-10-CM > S00-T88 > S20-S29 > S28 > S28.2 > S28.22 > S28.229 S28.229 Partial traumatic amputation of unspecified breast Non-Billable/Non-Specific Codes S28.229A..., initial encounterS28.229D..., subsequent encounterS28.229S..., sequela