ICD-10-CM > L00-L99 > L80-L99 > L89 > L89.8 > L89.81 L89.81 Pressure ulcer of head Non-Billable/Non-Specific Applicable To Pressure ulcer of face Codes L89.810Pressure ulcer of head, unstageableL89.811Pressure ulcer of head, stage 1L89.812Pressure ulcer of head, stage 2L89.813Pressure ulcer of head, stage 3L89.814Pressure ulcer of head, stage 4L89.816Pressure-induced deep tissue damage of headL89.819Pressure ulcer of head, unspecified stage