Emergency: 119
AMDA-IMIC

L99 Other disorders of skin and subcutaneous tissue in diseases classified elsewhere

Billable

Block: Other disorders of the skin and subcutaneous tissue (L80-L99)

Excludes 1 (cannot be coded together)

  • skin disorders in diabetes (E08-E13 with .62-)
  • skin disorders in gonorrhea (A54.89)
  • skin disorders in syphilis (A51.31, A52.79)

Code First

  • underlying disease, such as:
  • amyloidosis (E85.-)
✓
This category is a complete, billable diagnosis code.

No additional specificity is required — submit L99 directly on claims and documentation without a subcode extension.

Last reviewed: September 2026