All ICD10 Codes
L56Not billable, use a more specific code below

Other acute skin changes due to ultraviolet radiation

In Radiation-related disorders of the skin and subcutaneous tissue (L55-L59), chapter 12: Diseases of the Skin and Subcutaneous Tissue

8 billable codes under L56: none are a CC or MCC; none map to an HCC.

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Instructional notes

Use additional code: add a second code for this, listed after this one

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

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers assigning pressure ulcer codes by site and stage, including unstageable, healing, healed, and progressing ulcers, and coding healing or progressing non-pressure chronic ulcers.

Read Section I.C.12 (page 58)

All codes under L56

L56 can't be used on a claim. Pick a billable code below; grey headings group them.

L56 MS-DRGs

As the principal diagnosis, all 8 billable codes under L56 group to MS-DRG 606 or 607 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

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. UV rays can cause skin damage during any season or at any temperature. They can also cause eye problems, wrinkles, skin spots, and skin cancer.

Read more about sun exposure on MedlinePlus

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.