In simple words: Skin peeling due to a red skin condition affecting 20-29% of the body.

Exfoliation due to erythematous condition involving 20-29 percent of body surface. Code first erythematous condition causing exfoliation, such as: Ritter's disease (L00) (Staphylococcal) scalded skin syndrome (L00) Stevens-Johnson syndrome (L51.1) Stevens-Johnson syndrome-toxic epidermal necrolysis overlap syndrome (L51.3) Toxic epidermal necrolysis (L51.2).

Example 1: A patient presents with skin peeling affecting 25% of their body due to a diagnosed case of Stevens-Johnson syndrome. The principal diagnosis would be Stevens-Johnson syndrome (L51.1), with L49.2 coded as a secondary diagnosis to specify the extent of the exfoliation., A child is diagnosed with Staphylococcal scalded skin syndrome and has skin exfoliation on their torso and parts of their limbs, totaling approximately 22% of their body surface area.L00 (Staphylococcal scalded skin syndrome) is the primary code, and L49.2 is used to further specify the extent of exfoliation., A patient experiencing drug-induced Toxic epidermal necrolysis (L51.2) has skin peeling covering 27% of their body. L51.2 is the principal diagnosis, and L49.2 is added to indicate the affected body surface area.

The documentation should clearly state the underlying erythematous condition causing the exfoliation, and the percentage of body surface area involved.Measurements or estimations of the affected area should be included in the medical record.

** For accurate coding, it's important to differentiate L49.2 from other related codes that describe exfoliation due to different causes or affecting other body surface area percentages. Always ensure the documentation supports the reported percentage of affected skin.