ICD-10-CM > L00-L99 > L80-L99 > L89 > L89.1 > L89.10 > L89.101 L89.101 Pressure ulcer of unspecified part of back, stage 1 Billable/Specific Copy Code Copy Description Applicable To Healing pressure ulcer of unspecified part of back, stage 1Pressure pre-ulcer skin changes limited to persistent focal edema, unspecified part of back