2027 ICD-10-CM Diagnosis Code L55Sunburn

ICD-10-CM Codes›L00–L99›L55-L59›L55

ICD-10-CM L55
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

L55 is a non-billable ICD-10-CM category code for sunburn, so it cannot be submitted on claims. Use a more specific code from this category instead, such as L55.0, L55.1, L55.2, and L55.9.

Code Identity

ICD-10-CM Code
L55
Billable Status
No — Non-Billable Category
Code Describes
Sunburn
Short Description
Sunburn
Same as the full description in the CMS dataset.
Chapter
L55-L59
Radiation-related disorders of the skin and subcutaneous tissue

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL55-L59Radiation-related disorders of the skin and subcutaneous tissue
CategoryL55Sunburn
This CodeL55Sunburn

Specific Coding for SunburnOverview

Non-specific codes like L55 require more characters. Use one of these billable codes instead:

  • Use L55.0 for Sunburn of first degree

  • Use L55.1 for Sunburn of second degree

  • Use L55.2 for Sunburn of third degree

  • Use L55.9 for Sunburn, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to L55: its own notes plus those printed at Chapter 12. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 12 (L00-L99) Diseases of the skin and subcutaneous tissue applies to 1,001 codes
  • 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.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name L55, its category, or a range that includes it.

Excludes1 5

These codes carry an Excludes1 note naming L55: they are not reported together with it, unless the two conditions are unrelated.

  • K13.0 Diseases of lips
    cheilitis due to radiation-related disorders (L55-L59)
  • Block T07 Injuries involving multiple body regions
    sunburn (L55.-)
  • T66 Radiation sickness, unspecified
    radiation related disorders of the skin and subcutaneous tissue (L55-L59)
  • T66 Radiation sickness, unspecified
    sunburn (L55.-)
  • T67 Effects of heat and light
    radiation-related disorders of the skin and subcutaneous tissue (L55-L59)

Excludes2 8

These codes carry an Excludes2 note naming L55: its condition is not part of those codes, and both may be reported when the patient has both.

  • Block L20-L30 Dermatitis and eczema
    radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
  • L23 Allergic contact dermatitis
    radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
  • L24 Irritant contact dermatitis
    radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
  • L25 Unspecified contact dermatitis
    radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
  • Block T20-T32
    radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
  • Block T20-T32
    sunburn (L55.-)
  • T67 Effects of heat and light
    sunburn (L55.-)
  • X32 Exposure to sunlight
    radiation-related disorders of the skin and subcutaneous tissue (L55-L59)

Clinical InformationClinical

  • Sunburn

    an injury to the skin causing erythema, tenderness, and sometimes blistering and resulting from excessive exposure to the sun. the reaction is produced by the ultraviolet radiation in sunlight.

Patient EducationClinical

Sun Exposure

Ultraviolet (UV) rays are an invisible form of radiation. They can pass through your skin and damage your skin cells. Sunburns are a sign of skin damage. Suntans aren't healthy, either. They appear after the sun's rays have already killed some cells and damaged others.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About L55Overview

What is the ICD-10 code for sunburn?

L55 is the ICD-10-CM category for sunburn, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is L55 (Sunburn) a billable code?

No. This is a category header that groups the codes for sunburn, and headers cannot be submitted on claims. Claims for sunburn need a more specific code from this category, such as L55.0, L55.1, and L55.2.