G04.1

Approximate Synonyms

• Htlv-1-associated myelopathy-tropical spastic paraparesis

• Spastic paraplegia, tropical

Clinical Information

• A subacute paralytic myeloneuropathy occurring endemically in tropical areas such as the caribbean, colombia, india, and africa, as well as in the southwestern region of japan; associated with infection by human t-cell leukemia virus i. Clinical manifestations include a slowly progressive spastic weakness of the legs, increased reflexes, babinski signs, incontinence, and loss of vibratory and position sensation. On pathologic examination inflammatory, demyelination, and necrotic lesions may be found in the spinal cord. Adams et al., Principles of Neurology, 6th ed, p1239)

• An incurable viral infection of the spinal cord that causes weakness in the legs

Details

• G04.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM G04.1 became effective on October 1, 2022.

• This is the American ICD-10-CM version of G04.1 – other international versions of ICD-10 G04.1 may differ.