In simple words: This code describes a non-cancerous condition called neurofibromatosis. It's a genetic disorder causing tumors to grow along nerves. There are different types of neurofibromatosis, each with its own symptoms.

Q85.0 in the ICD-10-CM coding system represents nonmalignant neurofibromatosis.This encompasses a group of genetic disorders characterized by the growth of tumors along nerves throughout the body.Several subtypes exist, including neurofibromatosis type 1 (NF1) and neurofibromatosis type 2 (NF2), each with varying clinical presentations and severities.The code may be further specified with additional digits to indicate the type of neurofibromatosis or unspecified.

Example 1: A 5-year-old child presents with multiple café-au-lait spots and axillary freckling.Genetic testing confirms a diagnosis of Neurofibromatosis type 1 (NF1). Code Q85.01 is used., A 30-year-old adult experiences hearing loss and balance problems.Imaging reveals bilateral vestibular schwannomas.A diagnosis of Neurofibromatosis type 2 (NF2) is made, and code Q85.02 is utilized., A patient exhibits multiple schwannomas without the other features of NF1 or NF2. Schwannomatosis (Q85.03) is diagnosed.

Detailed clinical history, physical examination findings (including presence of café-au-lait spots, neurofibromas, Lisch nodules, etc.), imaging studies (MRI, CT scans), genetic testing results if performed.

** This code is not for use on maternal records.It excludes inborn errors of metabolism (E70-E88).