Y84.2
ICD-10-CMRadiological procedure and radiotherapy as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure
This code identifies adverse effects or complications arising from diagnostic imaging (e.g., X-rays, CT scans, MRIs) or therapeutic radiation treatments. It signifies that the patient's body reacted negatively to the radiation exposure, or developed a delayed complication, even though the procedure itself was performed correctly without any immediate errors or accidents.
Use this code when documenting conditions like radiation-induced dermatitis, enteritis, or myelosuppression that are directly attributable to a past radiological procedure or radiotherapy. It is appropriate when the medical record clearly indicates the complication is a consequence of the radiation, and there was no documented misadventure during the procedure itself.
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