| ICD-10 Code | Description |
| L98.411 | Non-pressure chronic ulcer of buttock limited to breakdown of skin |
| L98.412 | Non-pressure chronic ulcer of buttock with fat layer exposed |
| L98.413 | Non-pressure chronic ulcer of buttock with necrosis of muscle |
| L98.414 | Non-pressure chronic ulcer of buttock with necrosis of bone |
| L98.415 | Non-pressure chronic ulcer of buttock with muscle involvement without evidence of necrosis |
| L98.416 | Non-pressure chronic ulcer of buttock with bone involvement without evidence of necrosis |
| L98.418 | Non-pressure chronic ulcer of buttock with other specified severity |
| L98.419 | Non-pressure chronic ulcer of buttock with unspecified severity |
| L98.421 | Non-pressure chronic ulcer of back limited to breakdown of skin |
| L98.422 | Non-pressure chronic ulcer of back with fat layer exposed |
| L98.423 | Non-pressure chronic ulcer of back with necrosis of muscle |
| L98.424 | Non-pressure chronic ulcer of back with necrosis of bone |
| L98.425 | Non-pressure chronic ulcer of back with muscle involvement without evidence of necrosis |
| L98.426 | Non-pressure chronic ulcer of back with bone involvement without evidence of necrosis |
| L98.428 | Non-pressure chronic ulcer of back with other specified severity |
| L98.429 | Non-pressure chronic ulcer of back with unspecified severity |
| L98.491 | Non-pressure chronic ulcer of skin of other sites limited to breakdown of skin |
| L98.492 | Non-pressure chronic ulcer of skin of other sites with fat layer exposed |
| L98.493 | Non-pressure chronic ulcer of skin of other sites with necrosis of muscle |
| L98.494 | Non-pressure chronic ulcer of skin of other sites with necrosis of bone |
| L98.495 | Non-pressure chronic ulcer of skin of other sites with muscle involvement without evidence of necrosis |
| L98.496 | Non-pressure chronic ulcer of skin of other sites with bone involvement without evidence of necrosis |
| L98.498 | Non-pressure chronic ulcer of skin of other sites with other specified severity |
| L98.499 | Non-pressure chronic ulcer of skin of other sites with unspecified severity |
