AHA Coding Clinic® for ICD-9 - 2009 Issue 4; Volume 3 New/Revised Codes

Laser Interstitial Thermal Therapy

Effective October 1, 2009, a new subcategory (17.6) has been created to report laser interstitial thermal therapy (LITT) under guidance. Four new procedure codes have been created to uniquely report LITT of different sites. The use of LITT under guidance will help to eliminate or reduce the size of a tumor. Thermal therapy can be used to destroy malignancies involving the brain, breast, liver, prostate and other organs. There are many forms of energy sources such as laser, microwave, radiofrequency, etc. The heat source may be extracorporeal (outside the body), extrastitial (outside the tumor) or interstitial (inside the...

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