Question: A 40-year-old male with a history of shingles, presents to his physician’s office with low-back pain and lower extremity weakness. The MRI revealed no lesions outside or within the spinal cord. A presumptive diagnosis of herpes zoster myelitis was made. How do we code this?
Mississippi Subscriber
Answer: The ICD-10 code for this diagnosis is B02.24 (Postherpetic myelitis), which also covers Herpes zoster myelitis. B02.24 is part of the B00-B09 group of codes that describe viral infections characterized by skin and mucous membrane lesions. B02 is the branch of all herpes zoster conditions, of which myelitis is part of B02.2 (Zoster with other nervous system involvement).