ICD-10-CM > S00-T88 > T36-T50 > T44 > T44.3 > T44.3X > T44.3X6 > T44.3X6D T44.3X6D Underdosing of other parasympatholytics [anticholinergics and antimuscarinics] and spasmolytics, subsequent encounter Billable/Specific Copy Code Copy Description