ICD-10-CM > L00-L99 > L80-L99 > L89 > L89.5 > L89.52 > L89.521 L89.521 Pressure ulcer of left ankle, stage 1 Billable/Specific Copy Code Copy Description Applicable To Healing pressure ulcer of left ankle, stage 1Pressure pre-ulcer skin changes limited to persistent focal edema, left ankle