ICD-10-CM > L00-L99 > L80-L99 > L89 > L89.6 > L89.60 > L89.604 L89.604 Pressure ulcer of unspecified heel, stage 4 Billable/Specific Copy Code Copy Description Applicable To Healing pressure ulcer of unspecified heel, stage 4Pressure ulcer with necrosis of soft tissues through to underlying muscle, tendon, or bone, unspecified heel