Radiodermatitis (L58) ICD-10-CM
The L58 code range covers radiodermatitis with 4 ICD-10-CM diagnosis codes. 3 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
Codes in the L58 Range 4 codes · 3 billable
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the L58 range.
Radiodermatitis
A cutaneous inflammatory reaction occurring as a result of exposure to ionizing radiation.
About the L58 Code Range
ICD-10 code L58 covers radiodermatitis, a skin condition caused by exposure to radiation. It includes specific codes for acute radiodermatitis (L58.0), chronic radiodermatitis (L58.1), and unspecified cases (L58.9), helping healthcare providers accurately document skin reactions due to radiation therapy.
These codes are used to classify skin disorders resulting from radiation exposure, often seen as side effects of radiotherapy. Acute radiodermatitis (L58.0) refers to early-stage skin inflammation and damage, sometimes called early radiation dermatitis or disorder of skin due to radiotherapy. Chronic radiodermatitis (L58.1) relates to long-term skin changes like radiation alopecia and chronic phototoxic dermatitis, reflecting ongoing or late effects of ionizing radiation. The unspecified code (L58.9) is for cases where the exact timing or nature of the radiation-induced skin condition is unclear but still recognized as radiation dermatitis. Using these distinct codes helps in precise healthcare documentation and supports better patient management.
Questions About This Page
How many billable codes are in the L58 range?
Of the 4 codes in this range, 3 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the L58 range classify?
The range classifies radiodermatitis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
