ICD-10-CM > S00-T88 > T36-T50 > T50 > T50.A > T50.A9 > T50.A96 T50.A96 Underdosing of other bacterial vaccines Non-Billable/Non-Specific Codes T50.A96A..., initial encounterT50.A96D..., subsequent encounterT50.A96S..., sequela