ICD-10-CM > S00-T88 > T36-T50 > T43 > T43.2 > T43.29 > T43.296 T43.296 Underdosing of other antidepressants Non-Billable/Non-Specific Codes T43.296A..., initial encounterT43.296D..., subsequent encounterT43.296S..., sequela