L59.9: Disorder of the skin and subcutaneous tissue related to radiation, unspecified
L59.9 is the billable ICD-10-CM diagnosis code for Disorder of the skin and subcutaneous tissue related to radiation, unspecified. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code L59.9?
L59.9 is the ICD-10-CM diagnosis code for Disorder of the skin and subcutaneous tissue related to radiation, unspecified. It belongs to category L59 (Other disorders of skin and subcutaneous tissue related to radiation).
Is L59.9 a billable code?
Yes. L59.9 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does L59.9 belong to?
L59.9 is part of ICD-10-CM category L59 — Other disorders of skin and subcutaneous tissue related to radiation, which has 6 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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