ICD-10-CM > L00-L99 > L80-L99 > L89 > L89.8 > L89.81 > L89.814 L89.814 Pressure ulcer of head, stage 4 Billable/Specific Copy Code Copy Description Applicable To Healing pressure ulcer of head, stage 4Pressure ulcer with necrosis of soft tissues through to underlying muscle, tendon, or bone, head