L41

Parapsoriasis

FY2027Chapter 12: Diseases of the skin and subcutaneous tissue/L40–L45 Papulosquamous disorders

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

L41 is a non-billable ICD-10-CM code category for parapsoriasis. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are L41.0 Pityriasis lichenoides et varioliformis acuta, L41.1 Pityriasis lichenoides chronica, L41.3 Small plaque parapsoriasis, L41.4 Large plaque parapsoriasis and 3 more. Its coding notes include 1 Excludes1 entry and 10 Excludes2 entries.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • poikiloderma vasculare atrophicans (L94.5)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (10 notes)
Inherited from Chapter 12 Diseases of the skin and subcutaneous tissue
  • 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.-)

More specific codes under L41 7