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L56.4: Polymorphous light eruption

You have skin lesions after your skin has been exposed to sunlight. This is also called a sun allergy.

The condition referred to as “sun allergy” is actually not an allergy. It is not yet known for sure what causes the skin lesions in this condition. After the skin has been exposed to sunlight, the skin lesions form within a few hours or days. The skin can become red or swell up in the affected areas. Small papules or blisters may form, too. The affected areas of the skin can be very itchy.

Areas of the skin that are exposed to the sun without protection are particularly affected. The skin lesions occur mainly in spring or early summer on skin that is still untanned. When the skin gets used to the sun as the summer wears on, these kinds of skin lesions are rarer.

Additional indicator

On medical documents, the ICD code is often appended by letters that indicate the diagnostic certainty or the affected side of the body.

  • G: Confirmed diagnosis
  • V: Tentative diagnosis
  • Z: Condition after
  • A: Excluded diagnosis
  • L: Left
  • R: Right
  • B: Both sides

Further information

Note

This information is not intended for self-diagnosis and does not replace professional medical advice from a doctor. If you find an ICD code on a personal medical document, please also note the additional indicator used for diagnostic confidence.
Your doctor will assist you with any health-related questions and explain the ICD diagnosis code to you in a direct consultation if necessary.

Source

Provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).