All ICD10 Codes

L56

Non-Billable
ChapterL00–L99
Rankcategory
Official Description

Other acute skin changes due to ultraviolet radiation

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 12: Diseases of the Skin and Subcutaneous Tissue (L00-L99).

CH12 Parent Instructions

Excludes2(Not included here)
  • 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.-)

Instructional Notes

Use Additional Code
  • code to identify the source of the ultraviolet radiation (W89, X32)

Clinical Hierarchy

CH12Diseases of the skin and subcutaneous tissue (L00-L99)
L55-L59Radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
L56Other acute skin changes due to ultraviolet radiation
L56.0Drug phototoxic response
L56.1Drug photoallergic response
L56.2Photocontact dermatitis [berloque dermatitis]
L56.3Solar urticaria
L56.4Polymorphous light eruption
L56.5Disseminated superficial actinic porokeratosis (DSAP)
L56.8Other specified acute skin changes due to ultraviolet radiation
L56.9Acute skin change due to ultraviolet radiation, unspecified

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to L56:

chapterCH12
Diseases of the skin and subcutaneous tissue (L00-L99)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to L56. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

25 raw paths
Berlock (berloque) dermatitis1 unique routes
Direct index entry→L56
Change (s) (in) (of)2 unique routes
skin(2 variants)
acute, due to ultraviolet radiation→L56(2 variants)
specified NEC→L56
Cheilitis (acute) (angular) (catarrhal) (chronic) (exfoliative) (gangrenous) (glandular) (infectional) (suppurative) (ulcerative) (vesicular)1 unique routes
actinic (due to sun)→L56
Dermatitis (eczematous)7 unique routes
berlock, berloque→L56
due to(4 variants)
light (sun) NEC
acute→L56
radiation
sun NEC
acute→L56
sunshine NEC
acute→L56
ultraviolet rays (sun NEC) (chronic exposure)
acute→L56
photocontact→L56
ultraviolet (sun) (chronic exposure)
acute→L56
DSAP1 unique routes
Direct index entry→L56
Effect, adverse1 unique routes
ultraviolet (radiation) (rays) NOS
dermatitis or eczema
acute→L56
Eruption2 unique routes
Hutchinson, summer→L56
polymorphous light (sun)→L56
Hutchinson's2 unique routes
disease, meaning(2 variants)
prurigo estivalis→L56
summer eruption or summer prurigo→L56
Hydroa2 unique routes
aestivale→L56
vacciniforme→L56
Photodermatitis (sun)2 unique routes
Direct index entry→L56
due to drug→L56
Photosensitivity, photosensitization (sun) skin1 unique routes
Direct index entry→L56
Prurigo (ferox) (gravis) (Hebrae) (Hebra's) (mitis) (simplex)1 unique routes
estivalis→L56
Reaction2 unique routes
drug NEC(2 variants)
photoallergic→L56
phototoxic→L56

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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