ICD-10-CM > L00-L99 > L80-L99 > L89 > L89.3 > L89.32 > L89.323 L89.323 Pressure ulcer of left buttock, stage 3 Billable/Specific Copy Code Copy Description Applicable To Healing pressure ulcer of left buttock, stage 3Pressure ulcer with full thickness skin loss involving damage or necrosis of subcutaneous tissue, left buttock