Diagnosis Code


Code Information

Diagnosis Code: L56.4

Short Description: Polymorphous light eruption

Long Description: Polymorphous light eruption

The code L56.4 is VALID for claim submission

Code Classification:

  • Diseases of the skin and subcutaneous tissue (L00–L99)
    • Radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
      • Other acute skin changes due to ultraviolet radiation (L56)
        • L56.4 Polymorphous light eruption

Code Version: 2020 ICD-10-CM


  • Acne estivalis
  • Hydroa estivale
  • Hydroa vacciniforme
  • Juvenile spring eruption
  • Light - exacerbated acne
  • Polymorphous light eruption
  • Polymorphous light eruption, diffuse erythematous type
  • Polymorphous light eruption, eczematous type
  • Polymorphous light eruption, papular type
  • Polymorphous light eruption, papulovesicular type
  • Polymorphous light eruption, plaque type
  • Pruritus estivalis

Diagnostic Related Group(s)

The code L56.4 is grouped in the following Diagnostic Related Group(s) (MS-DRG v37.0)
  • Minor Skin Disorders With Mcc (606)
  • Minor Skin Disorders Without Mcc (607)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
L56.4 Right Arrow 692.82 Dermatitis oth radiation

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
L56 Other acute skin changes due to ultraviolet radiation
L56.0 Drug phototoxic response
L56.1 Drug photoallergic response
L56.2 Photocontact dermatitis [berloque dermatitis]
L56.3 Solar urticaria
L56.5 Disseminated superficial actinic porokeratosis (DSAP)
L56.8 Other specified acute skin changes due to ultraviolet radiation
L56.9 Acute skin change due to ultraviolet radiation, unspecified

This page was last updated on: 10/1/2019