ICD-10-CM > S00-T88 > S70-S79 > S70 > S70.3 > S70.32 > S70.329 S70.329 Blister (nonthermal), unspecified thigh Non-Billable/Non-Specific Codes S70.329A..., initial encounterS70.329D..., subsequent encounterS70.329S..., sequela