Dermatology Coding Alert

In 2015, look for debut of the L57.- codes .

In a previous issue of Dermatology Coding Alert, we looked at how ICD-10 would change diagnosis coding for sunburn and other solar radiation-related skin conditions. This time, we’ll examine how your coding will change effective Oct. 1, 2015, for skin disorders caused by other sources of radiation.

ICD-10 contains a category of diagnoses relating to “Skin changes due to chronic exposure to nonionizing radiation,” which will map to ICD-9 codes that are now scattered among different sections. The new ICD-10 category, L57.-, consists of:

*ICD-9 code 701.8 maps to two ICD-10 codes in the L57.- category, but it will also map to other ICD-10 codes in other categories:

• L11.8 — Other specified acantholytic disorders
  
• L11.9 — Acantholytic disorder, unspecified
  
• L66.4 — Folliculitis ulerythematosa reticulata
  
• L85.8 — Other specified epidermal thickening
  
• L87.1 — Reactive perforating collagenosis
  
• L87.8 — Other transepidermal elimination disorders
  
• L90.3 — Atrophoderma of Pasini and Pierini
  
• L90.4 — Acrodermatitis chronica atrophicans
  
• L90.8 — Other atrophic disorders of skin
  
• L91.8 — Other hypertrophic disorders of the skin
  
• L92.2 — Granuloma faciale [eosinophilic granuloma of skin]
  
• L94.8 — Other specified localized connective tissue disorders
  
• L98.5 — Mucinosis of the skin
  
• L98.6 — Other infiltrative disorders of the skin and subcutaneous tissue
  
• i — Other disorders of skin and subcutaneous tissue in diseases classified elsewhere.
  

**ICD-9 code 709.09 will also map to the codes in the ICD-10 “Other disorders of pigmentation” series (L81.-).

Learn more: For more information on the ICD-10 conversion, as well as specific ICD-9 to ICD-10 code bridges, visit https://www.aapc.com/codes/.