ICD-10-CM > L00-L99 > L80-L99 > L89 > L89.5 > L89.51 > L89.513 L89.513 Pressure ulcer of right ankle, stage 3 Billable/Specific Copy Code Copy Description Applicable To Healing pressure ulcer of right ankle, stage 3Pressure ulcer with full thickness skin loss involving damage or necrosis of subcutaneous tissue, right ankle