Coding and coverage · ICD-10-CM

L49 Exfoliation due to erythematous conditions according to extent of body surface involved

Not billable (header)Chapter 12

Report one of the more specific codes below.

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Codes under this one

  • L49.0 Exfoliation due to erythematous condition involving less than 10 percent of body surface
  • L49.1 Exfoliation due to erythematous condition involving 10-19 percent of body surface
  • L49.2 Exfoliation due to erythematous condition involving 20-29 percent of body surface
  • L49.3 Exfoliation due to erythematous condition involving 30-39 percent of body surface
  • L49.4 Exfoliation due to erythematous condition involving 40-49 percent of body surface
  • L49.5 Exfoliation due to erythematous condition involving 50-59 percent of body surface
  • L49.6 Exfoliation due to erythematous condition involving 60-69 percent of body surface
  • L49.7 Exfoliation due to erythematous condition involving 70-79 percent of body surface
  • L49.8 Exfoliation due to erythematous condition involving 80-89 percent of body surface
  • L49.9 Exfoliation due to erythematous condition involving 90 or more percent of body surface

Instructional notes

Chapter 12

Excludes2Not included here: the patient may have both; report both when both are present.
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • lipomelanotic reticulosis (I89.8)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • viral warts (B07.-)

Section L49-L54

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.

This code

Code firstSequence the underlying condition 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)

Chapter 12: Diseases of the skin and subcutaneous tissue · L49-L54 Urticaria and erythema (L49-L54)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.