ICD-10-CM > L00-L99 > L80-L99 > L89 > L89.1 > L89.15 > L89.154 L89.154 Pressure ulcer of sacral region, stage 4 Billable/Specific Copy Code Copy Description Applicable To Healing pressure ulcer of sacral region, stage 4Pressure ulcer with necrosis of soft tissues through to underlying muscle, tendon, or bone, sacral region