Alphabetic Index FY2027

L27

Dermatitis due to substances taken internally

FY2027Chapter 12: Diseases of the skin and subcutaneous tissue/L20–L30 Dermatitis and eczema

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

L27 is a non-billable ICD-10-CM code category for dermatitis due to substances taken internally. 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 L27.0 Generalized skin eruption due to drugs and medicaments taken internally, L27.1 Localized skin eruption due to drugs and medicaments taken internally, L27.2 Dermatitis due to ingested food, L27.8 Dermatitis due to other substances taken internally and 1 more. Its coding notes include 1 Excludes1 entry and 23 Excludes2 entries.

Excludes1

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

This code

Excludes2

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

This code
  • adverse food reaction, except dermatitis (T78.0-T78.1)
  • contact dermatitis (L23-L25)
  • drug photoallergic response (L56.1)
  • drug phototoxic response (L56.0)
  • urticaria (L50.-)
Also from chapter/block level (18 notes)
Inherited from L20–L30 Dermatitis and eczema
  • chronic (childhood) granulomatous disease (D71-)
  • dermatitis gangrenosa (L08.0)
  • dermatitis herpetiformis (L13.0)
  • dry skin dermatitis (L85.3)
  • factitial dermatitis (L98.1)
  • perioral dermatitis (L71.0)
  • radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
  • stasis dermatitis (I87.2)
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.-)

Notes

Also from chapter/block level (1 note)
Inherited from L20–L30 Dermatitis and eczema
  • In this block the terms dermatitis and eczema are used synonymously and interchangeably.

More specific codes under L27 5